Answer:
Our genes are the blueprint for our bodies and determine how our cells grow, function, and behave. Each gene contains the instructions for making a specific protein. Proteins are the building blocks of our cells and perform many vital functions in our bodies. Protein synthesis is the process of creating proteins from these genetic instructions.
Explanation:
allergens that enter through the mouth are called , while allergens that enter through the respiratory tract are called
Ingestants are allergens that enter through the respiratory system, whereas are allergens that enter through the mouth. An allergic reaction to specific foods, such as fruits, vegetables, and nuts, is known as oral allergy syndrome (OAS).
If you have a cross-reactive allergy to grass, trees, or other pollens, it occurs most frequently. OAS produces itching in the lips, mouth, and throat but seldom results in serious symptoms. via way of the nose. via use of the mouth. via means of the hairs. Such allergens only cause digestive system inflammation when they enter the body through the mouth. Nose: Small particles and gaseous allergens, such as pollen, spores, dust, and chemicals, enter the body through the nose. Coughing, sneezing, runny nose, itching, and watery eyes are its hallmark symptoms.
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allergens that enter through the mouth are called , while allergens that enter through the respiratory tract are called ______.
True or False? the expression of a gene (i.e. transcription and translation) could occur more quickly in a prokaryote compared to a eukaryote.
The given statement “the expression of a gene (i.e., transcription and translation) could occur more quickly in a prokaryote compared to a eukaryote” is True because post-transcriptional modifications occurs in eukaryotes.
In eukaryotic cells, after transcription occurs, the RNA molecule must undergo several modifications before it can be used as a template for protein synthesis. These modifications include the addition of a cap and tail to the RNA molecule, as well as the removal of non-coding regions called introns. Once these modifications are complete, the mature RNA molecule can be transported out of the nucleus and into the cytoplasm, where it can be used as a template for protein synthesis.
The additional steps required for gene expression in eukaryotic cells mean that the process is slower than in prokaryotic cells.
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which of the following physiological alterations is/are commonly observed in aki? select all that apply. group of answer choices increased urine output metabolic alkalosis hypoparathyroidism fluid accumulation decreased urine output metabolic acidosis decreased energy expenditure
Physiological alterations commonly observed in AKI (Acute Kidney Injury) are: Decreased urine output, Fluid accumulation, Metabolic acidosis,
Decreased urine output: This occurs because the kidneys are not able to filter and eliminate waste products and excess fluid from the body properly, leading to a decrease in urine production.
Fluid accumulation: This occurs due to the inability of the kidneys to regulate fluid balance, leading to an accumulation of fluid in the body.
Metabolic acidosis: This occurs due to the buildup of acidic waste products in the blood that the kidneys are not able to eliminate, leading to an imbalance in the body's acid-base balance and metabolic processes.
Increased urine output, metabolic alkalosis, hypoparathyroidism, and decreased energy expenditure are not commonly observed in AKI.
In summary, Urine output, fluid accumulation, and metabolic acidosis are commonly observed in AKI.
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the primary type of microtubule that positions the chromosome in preparation for mitosis is
The primary type of microtubule that positions the chromosome in preparation for mitosis is kinetochore microtubule.
By following the plus ends of microtubules in the mitotic spindle, kinetochore complexes, which include several proteins, propel the movement of chromosomes. Even though a single microtubule has the power to transport chromosomes, human kinetochores connect up to 20 of them.
Assembled at centromeric DNA regions, kinetochores are proteinaceous complexes with several parts that serve as the primary microtubule attachment site on chromosomes during cell division.
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The teacher gives their students an unknown liquid in a beaker and asks them to determine the speed of a sound wave traveling through it.
Select the statements that accurately describe the results the students should expect
As with all waves, the relationship between the speed of sound, its frequency, and its wavelength is vw = f, where vw denotes the speed of sound, f denotes its frequency, and f is its wavelength. The straightforward equation speed = distance/time can be used to determine the speed of sound.
In the same amount of time, sound waves traveling at a high speed can go farther. For instance, if a sound wave travels and returns across a distance of 20 meters in 2 seconds, its speed is 10 m/s. The stiffness of the medium (or compressibility in the case of gases) and its density work together to define the speed of sound in that medium.
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evolutionary changes that create new species, impacting the diversity of organisms over long periods of time through the evolution and extinction of many species, best describes which process?
The process that best describes the evolutionary changes that create new species and impact the diversity of organisms over long periods of time through the evolution and extinction of many species is speciation.
Speciation is the process by which new species arise from existing species. It occurs through various mechanisms, such as genetic mutations, genetic recombination, and natural selection, which lead to changes in the genetic makeup of populations over time. These changes can accumulate and eventually result in the formation of new species that are reproductively isolated from their ancestral species, meaning they can no longer interbreed and produce fertile offspring.
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The process that best describes the evolutionary changes that create new species and impact the diversity of organisms over long periods of time through the evolution and extinction of many species is known as speciation.
Speciation is a gradual process that occurs over thousands or even millions of years as a result of various factors such as geographic isolation, genetic mutations, natural selection, and reproductive barriers.
Over time, the accumulation of genetic differences can result in the formation of new species, leading to an increase in biodiversity.
However, speciation can also lead to the extinction of certain species that are unable to adapt to changing environments or compete with new and better-adapted species.
Therefore, speciation plays a crucial role in shaping the diversity of life on Earth over long periods of time.
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the ______ are designed for slicing or cutting into food. multiple choice question. molars canines premolars incisors
D)The incisors are designed for slicing or cutting into food. multiple choice question.
The incisors are the front teeth in the mouth, and they are the first teeth to come into contact with food when biting and chewing. Their shape is designed for cutting and slicing into food, like a knife.
The molars, on the other hand, are the back teeth in the mouth, and their shape is designed for grinding and crushing food. They have large, flat surfaces with ridges and cusps that help break down food into smaller pieces for digestion.
The canines, also known as cuspids, are the sharp, pointed teeth located between the incisors and premolars. They are used for tearing and ripping apart tough foods, like meat.
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The answer to your question is incisors.
The incisors are the front teeth that are designed for slicing or cutting into food.
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If instead of start ing with a broth culture, you need to develop a pure culture from solid media, what would you do differently?
Imagine that a colony on your agar plate was formed by both a Gram-negative bacterium that com- monly inhabits the mammalian digestive tract and (i) a Gram-positive marine bacterium.What culture medium and incubation parameters would you consider before developing a pure culture from the Gram-negative bacterium? (clue: selective media) 8 LAB 10 Obtaining Pure Culture
approach for developing pure culture from stable media is by doing it the use of streak plate method.
Can a pure culture be organized at once from a mixed broth culture?Answer and Explanation: A pure culture can't be received directly from a mixed-broth culture. In order to reap a pure tradition from a combined broth, you would need to function one of the following culture techniques: a streak plate, a sequence of pour plates, or dilutional broths.
Explain. Yes, the components from the mixed lifestyle just need to be separate first. This can be accomplished with the aid of doing a streak plate or diluting the mixture and the use of a spread-plate technique.
Obtaining a pure subculture of bacteria is generally completed by spreading bacteria on the floor of a stable medium so that a single mobile occupies an remoted component of the agar surface. This single mobile will go thru repeated multiplication to produce a seen colony of comparable cells, or clones.
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https://brainly.com/question/29352760#SPJ1in the human sexual response cycle, what is the name of the phase in which blood flows to the genitalia and pleasurable sensations build?
Phase 1: Excitation: The skin may damage. Skin become rough or firm. While the part of men erects as a result of increased blood flow to the genitals.
Excitation, plateau, orgasm, and resolution are the four stages of the human sexual response cycle. The excitement phase is when pleasure-producing feelings start to develop and blood starts to flow to the genitalia.
Physical changes such a faster heartbeat, breathing rate, and blood pressure are possible at this stage. Males and females experience erections and vaginal lubrication as a result of blood flow to the genital region. Sexual arousal is more intense during the excitement phase.
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Correct Question:
In the human sexual response cycle, what is the name of the phase in what blood flows to the genitalia and pleasurable sensations build?
Sunflowers must be
O pollinated
O grown
O germinated
O seeds
by other sunflower plants.
Answer:
I believe the answer is pollinate
which of the following are increased with the use of mood-stabilizing drugs? group of answer choices brain-derived neurotrophic factor potassium ions serotonin and norepinephrine first messengers
Highs and lows are increased with the use of mood-stabilizing drugs.
These are some kind of psychiatric drugs that helps in neutralizing depression, hypomania, bipolar disorder, etc.
Lithium, anticonvulsants, and antipsychotics are the three main mood stabilizers.
These medications have different names termed by the doctors for the treatments.
Why is it colder in the winter than in the summer? A. The Earth is tilted towards the sun in the summer and away from the sun in the winter, therefore it is colder in the winter. B. The gravitational pull of the moon makes it colder in the winter. C. The sun sets in the winter and comes back during the summer, that is why is it cold in the winter. D. Snow keeps the area cold in the winter
It is colder in the winter than in the summer because Earth is tilted towards the sun in the summer and away from the sun in the winter, therefore it is colder in the winter.
The correct option is A .
In general , Earth orbits the sun, the hemisphere that is tilted towards the sun changes. This means that the season changes. For example, when the northern hemisphere is tilted towards the sun, it is summer in the northern hemisphere and winter in the southern hemisphere.
Also, tilt of the Earth's axis and its orbit around the sun, other factors such as the distribution of land and water, ocean currents, and atmospheric circulation patterns also contribute to regional and local variations in temperature. However, the tilt and orbit of the Earth are the primary drivers of seasonal changes in temperature on a global scale.
Hence , A is the correct option
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explain how a patient could have red blood cells in the urine even if the filtration membrane were still intact
Hematuria, a disorder marked by the presence of red blood cells in the urine, can have a number of causes. Even though a compromised filtration membrane is frequently the source of hematuria, RBCs can still be found in the urine when the membrane is healthy.
The RBCs' origin in the kidneys themselves is one theory that might be put forth. RBCs can be released into the urine when a network of blood arteries in the kidneys bursts as a result of injury, infection, or other factors. Blood in the urine is caused by glomerulonephritis, an inflammation of the glomeruli (tiny filters in the kidney). Kidney stones could also be a factor in the development of hematuria. A kidney stone moving through the urinary tract might harm the lining, resulting in bleeding and RBCs in the urine. Therefore, even though filtration membrane degradation can be a prevalent cause of hematuria, there are many other potential causes for RBC presence in urine if the membrane remains undamaged.
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Many marine mollusks have distinctive larvae which have their bodies encircled by a row of cilia. These larvae are called
A. trochophores.
B. miracidia.
C. planulae.
D. zoecia.
E. polyps.
The larvae of many marine mollusks that are encircled by a row of cilia are called trochophores. The correct option is A.
These larvae are considered to be one of the most distinct and important stages in the life cycle of many marine invertebrates, including mollusks. The cilia that encircle the trochophore's body are used for locomotion and feeding, allowing the larvae to move through the water and capture small particles of food.
During development, trochophores eventually transform into adult mollusks, such as snails, clams, and oysters. This transformation process involves a series of developmental changes that enable the trochophore to develop into a fully functional adult mollusk.
Overall, the distinctive larvae of many marine mollusks play a critical role in the reproduction and survival of these fascinating creatures.
Understanding the unique characteristics and behaviors of trochophores can help us better appreciate the diversity and complexity of marine ecosystems, and the many fascinating organisms that call them home.
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in a forest community, the layer in which most photosynthesis occurs is the group of answer choices understory. forest floor. canopy. midstory.
The canopy is the layer in a forest community where the majority of photosynthesis occurs. The correct answer is the canopy.
Only in the mesophyll layers of plant leaves and occasionally in mesophyll cells in the stem does photosynthesis take place. Numerous chloroplasts are located in the mesophyll cells, which are sandwiched between the upper and lower epidermis of the leaf. This is where photosynthesis takes place.
The oceans account for approximately half of all photosynthesis on Earth, while land accounts for the remaining portion. Plants on land and in the ocean share the same fundamental needs for photosynthesis and growth.
Photosynthesis takes place within an organelle known as a chloroplast in all autotrophic eukaryotes. The mesophyll of plants contains cells with chloroplasts.
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pathogenic streptococci of the upper respiratory tract (such as streptococcus pyogenes) are distinguished from non-pathogenic streptococci by
Pathogenic streptococci of the upper respiratory tract (such as streptococcus pyogenes) are distinguished from non-pathogenic streptococci by beta-hemolytic activity. Option A is the correct answer.
Pathogenic streptococci of the upper respiratory tract, such as Streptococcus pyogenes, are distinguished from non-pathogenic streptococci by their beta-hemolytic activity.
This means that they are able to lyse red blood cells and produce a clear zone around the colony on blood agar plates.
Non-pathogenic streptococci, on the other hand, may display alpha-hemolytic activity, which results in a greenish discoloration around the colony, or no hemolytic activity at all.
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The question is -
Pathogenic streptococci of the upper respiratory tract (such as Streptococcus pyogenes) are distinguished from non-pathogenic streptococci by
a. beta-hemolytic activity.
b. no hemolytic activity.
c. alpha hemolytic activity.
d. the presence of a lysogenic phage.
e. the absence of a capsule.
Pathogenic streptococci of the upper respiratory tract, such as Streptococcus pyogenes, are distinguished from non-pathogenic streptococci by their ability to cause disease.
This is due to their production of specific virulence factors and content loaded pathogenicity islands that allow them to colonize and invade the host's tissues. In contrast, non-pathogenic streptococci do not possess these virulence factors and do not cause disease. Therefore, it is important to identify and differentiate these two groups of streptococci in order to effectively diagnose and treat infections caused by pathogenic streptococci.
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reticulocytes are young rbc that show a slight blue gray hue when stained with supravital stain like methylene blue. this blue grayh precipitate is made of?
The blue-gray precipitate seen in reticulocytes stained with supravital stains like methylene blue is made up of ribosomes.
The blue-gray precipitate seen in reticulocytes stained with supravital stains like methylene blue is made up of ribosomes, which are the remnants of the reticulocyte's protein synthesis machinery. Reticulocytes are young red blood cells that have just been released from the bone marrow into the bloodstream and are still in the process of maturing into fully functional red blood cells.
During this process, the reticulocytes synthesize hemoglobin, which is the protein that carries oxygen in red blood cells. The ribosomes in the reticulocytes help to synthesize the hemoglobin, but are eventually broken down as the reticulocyte matures into a fully functional red blood cell.
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he experimental results, which of the following is the best evolutionary explanation for the occurrence of ard in c. elegans ? responses the ability to enter ard provides a strong selective advantage because reproduction can occur despite periods of food scarcity. the ability to enter , a r d, provides a strong selective advantage because reproduction can occur despite periods of food scarcity. acquiring the genes for ard gives individuals a selective advantage because they produce more offspring than do individuals who cannot enter ard . acquiring the genes for , a r d, gives individuals a selective advantage because they produce more offspring than do individuals who cannot enter , a r d, . individuals who can enter ard are selected for in the population because they live longer than do individuals who cannot enter ard .
The ability to enter a r d provides a strong selective advantage because reproduction can occur despite periods of food scarcity is the best evolutionary explanation for the occurrence of a r d in C. elegans. So, the correct answer is 1.
According to the experimental findings, when food is in short supply, C. elegans can enter a r d stage before returning to normal development when food is plentiful.
This trait gives the organism a significant selective advantage in the wild by enabling it to reproduce and live during times of food scarcity.
It is possible that an evolutionary process that has favoured people with the genes required to enter this state over those who cannot has resulted in their ability to do so.
The findings of the experiment thus imply that the capacity to enter a ring is a beneficial adaptation that has been favoured in the C. elegans population.
Complete Question:
The experimental results suggest which of the following is the best evolutionary explanation for the occurrence of a r d in C. elegans?
Options:
1. The ability to enter a r d provides a strong selective advantage because reproduction can occur despite periods of food scarcity.
2. Acquiring the genes for a r d gives individuals a selective advantage because they produce more offspring than those who cannot enter a r d .
3. Individuals who can enter a r d are selected for in the population because they live longer than those who cannot enter a r d .
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which of the following is formed from a matrix of collagen fibers embedded in a hard mineral substance? cartilage bone adipose tissue fibrous connective tissue
Bone (Option. b) is formed from a matrix of collagen fibers embedded in a hard mineral substance, which provides strength and support for the body.
The collagen fibers give bone its flexibility, while the mineral substance, primarily composed of hydroxyapatite, contributes to its hardness and resistance to compression. Collagen fiber is the fiber in the extracellular matrix of connective tissues characterized by being elongated and made up of collagen glycoproteins.
It is typically arranged in branching bundles of indefinite length. It is a strong insoluble fiber. It occurs in the skin, tendon, ligaments, bone, and cartilage.
Collagen fibers are the most abundant type of fibers in an extracellular matrix of connective tissue; this is also the case for connective tissue within a section of the peripheral nerve.
Therefore, the correct answer is option b. bone.
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which observations illustrate shared ancestry by anatomical comparison studies? check all that apply.check all that applythe same structure has evolved to carry out different functions.the same structure has evolved to carry out different functions.different structures evolve in similar ways when subjected to the same selective pressures.different structures evolve in similar ways when subjected to the same selective pressures.a structure becomes vestigial.a structure becomes vestigial.structures are found
Anatomical comparison studies reveal homologous and vestigial structures, embryonic development, and convergent evolution, all of which can indicate shared ancestry between organisms and inform evolutionary relationships. Here all options are correct.
Shared ancestry is a concept in evolutionary biology that suggests that living organisms share a common ancestor. One way to investigate the shared ancestry between organisms is through anatomical comparison studies. Such studies aim to identify similarities and differences in the anatomical structures of different organisms and use this information to infer evolutionary relationships.
Observations that illustrate shared ancestry by anatomical comparison studies include:
Homologous Structures: Homologous structures are anatomical structures that are similar in different organisms, suggesting that they share a common ancestor. For example, the forelimbs of mammals, such as humans, dogs, and whales, have similar bone structures, suggesting that they evolved from a common ancestor with similar forelimb structures.
Vestigial Structures: Vestigial structures are anatomical structures that have lost their original function during evolution. These structures may still be present in some organisms, but they are reduced in size or no longer serve the same purpose as in their ancestors. For example, the human appendix is a vestigial structure that was once used to digest cellulose but is now functionless.
Embryonic Development: Embryonic development can reveal shared ancestry between organisms. Similarities in the embryonic development of different organisms suggest that they share a common ancestor. For example, the early embryonic development of vertebrates, including fish, reptiles, birds, and mammals, are very similar, suggesting that they share a common ancestor.
Convergent Evolution: Convergent evolution is the evolution of similar structures or functions in unrelated organisms due to similar selective pressures. Although not directly indicating shared ancestry, convergent evolution can result in similar anatomical structures in different organisms. For example, the wings of bats and birds are anatomically similar, despite evolving independently in each group.
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Complete question:
Which observations illustrate shared ancestry by anatomical comparison studies?
A - the same structure has evolved to carry out different functions.
B - different structures evolve in similar ways when subjected to the same selective pressures.
C - a structure becomes vestigial.
D - structures are found
during the stage of mitosis known as , gene expression resumes, as chromosomes uncoil. listen to the complete question
During the stage of mitosis known as telophase, gene expression resumes, as chromosomes uncoil.
The process of cytokinesis:
As the cell prepares for cytokinesis, the nuclear envelope reforms and the chromatin becomes less condensed, allowing for gene expression to occur. This process is essential for the proper functioning and differentiation of cells. Each chromosome contains genes, which dictate the expression of traits and characteristics. As the chromosomes uncoil, the genes become accessible to the cellular machinery responsible for gene expression, allowing for the necessary proteins to be produced.
During the stage of mitosis known as telophase, gene expression resumes, as chromosomes uncoil. In this phase, the chromosomes begin to uncoil and return to their normal, relaxed state, allowing for gene expression to resume. This marks the end of the mitosis process, leading to the final stage, cytokinesis, where the cell divides into two daughter cells.
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when a coronary artery occlusion slows or blocks the blood supply, the demand placed on the heart exceeds the supply and the myocardium that is fed by that artery progresses through three stages. what are they?
When a coronary artery occlusion slows or blocks the blood supply to the heart, it can lead to a condition called myocardial ischemia, where the heart muscle does not receive enough oxygen and nutrients to function properly. Over time, this can progress through three stages, known as the ischemic cascade:
Electrical dysfunction: During this initial stage, the heart muscle cells begin to experience a lack of oxygen and nutrients. This can cause changes in the electrical activity of the heart, including abnormal heart rhythms or arrhythmias.
Contractile dysfunction: If the ischemia continues, the heart muscle cells begin to lose their ability to contract properly, leading to reduced heart function. This can cause symptoms such as chest pain, shortness of breath, and fatigue.
Necrosis: In the final stage of the ischemic cascade, the lack of oxygen and nutrients can cause the heart muscle cells to die or become necrotic. This can lead to irreversible damage to the heart muscle, known as a myocardial infarction or heart attack.
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Which of the following correctly identifies letter C on the diagram below?
cerebellum
corpus collosum
medulla
thalamus
Answer: Cerebellum
Explanation:
I need help with a college assignment I don’t have time to do it and it’s reading a short essay and answering some questions if you could take the time to help it would be very much appreciated
Groups of living things called species can interbreed to create fertile offspring and have similar traits.
Biology is based on the idea of species, which is used to categorize and comprehend the diversity of life on Earth. Millions of species have been identified, ranging from simple single-celled organisms to sophisticated multicellular organisms like humans.
They regulate populations, provide food and nutrients for other creatures, and contribute to ecosystem services like pollination and nutrient cycling, among other vital ecological tasks.
Over millions of years, species have changed due to factors like natural selection, genetic drift, and gene flow. Threats to numerous species today include habitat loss, climate change, pollution, and overexploitation by humans.
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Complete question
I need help with a college assignment I don’t have time to do it and it’s reading a short essay on species. Answering some questions if you could take the time to help it would be very much appreciated.
the bulk of an herbaceous eudicot root consists of loosely arranged parenchyma cells in the: a. epidermis. b. periderm. c. cortex. d. endodermis. e. pericycle.
Parenchyma cells form the majority of an herbaceous eudicot root and are loosely arranged cortex. The correct answer is (C).
The pith and cortex, which are ground tissues, are produced by the ground meristem. The essence creates substance beams, which bring about the interfascicular cambium. The epidermis, a dermal tissue, is produced by the protoderm.
The storage of starch and the diffusion of water, nutrients, and other substances into the inner vascular structures are the cortex's primary functions. In the ground tissue, the cells are approximately organized and there is space between them, which works with gas trade between the stem and the encompassing air.
Dicots and monocots have different arrangements for the xylem and phloem. The vascular cambium separates bundles of phloem from the xylem, which is all situated in the middle of the dicot root.
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Which table correctly identifies the characteristics shared by the kingdoms Fungi and Animalia?
Eukaryotic
Multicellular
Heterotrophic
Mobile
Reproduce sexually
Unicellular
Heterotrophic
Decomposer
Photosynthetic
Decomposer
Prokaryotic
Multicellular
.
Answer: Eukaryotic, Multicellular, and Heterotrophic
Explanation:
Answer:
Eukaryotic
Multicellular
Heterotrophic
Explanation:
took the test and got it right. I got a 100 on the thing so if you have other questions I can answer those too. Maybe not all because some questions might be different than others
Stars evolve, or change, over time. It may take millions, or possibly billions, of years for a star to complete its life cycle. Stars spend most of their life, 90%, on the main sequence, illustrated in the Hertzsprung-Russell diagram. What color(s) are main sequence stars?
A mid-range or white mid-range or white
B all colors in the range all colors in the range
C cooler colors, yellow, orange, and red-cooler colors, yellow, orange, and red
D hot end, blue
Main sequence stars are usually at the hot end and are coloured blue. Thus, the correct answer from the given options is option D.
What are the other colours of stars?Red: cooler stars with surface temperatures between 2,500 and 3,500 KOrange: stars with surface temperatures between 3,500 and 4,000 KYellow: stars like our sun with surface temperatures around 5,500 KWhite: hotter stars with surface temperatures between 7,500 and 10,000 KBlue: very hot stars with surface temperatures above 10,000 KThe hottest and most massive stars are found at the blue end of the spectrum, while the coolest and least massive stars are found at the red end of the spectrum. Therefore, main sequence stars range in color from blue to red, but the majority of them are hot, blue stars.
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ammonites are: group of answer choices giant crocodiles up to 45 feet long. a type of cretaceous micro-plankton still found in the seas today.
" Ammonites are: D. Extinct squid relatives with chambered shells. The option is D correct.
Ammonites were marine mollusks that lived during the Mesozoic Era, particularly during the Jurassic and Cretaceous periods.
Extinct squid relatives with chambered shells. The correct answer is D.
They are known for their distinctive spiral shells with chambered compartments, which often had intricate patterns. Ammonites were not giant crocodiles, micro-plankton, or long-necked swimming reptiles with flippers. They were a group of extinct cephalopods, which are relatives of modern-day squids and nautiluses. They went extinct around 65 million years ago, but their fossils are found in abundance in various parts of the world, providing valuable information for studying ancient marine ecosystems and geological history.
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Complete Question
Ammonites are:
A. Giant crocodiles up to 45 feet long.
B. A type of Cretaceous micro-plankton still found in the seas today.
C. Long-necked swimming reptiles with flippers.
D. Extinct squid relatives with chambered shells.
explain the difference the structure of free and bound ribosomes.
Answer:
Hello! See the explanation below for an idea of the difference between free and bound ribosomes.
Explanation:
"Membrane-bound and free ribosomes are structurally and functionally identical. They differ only in the proteins they are making at any given time."
one a group of related organelles in plant cells that are involved in the storage of starches, fats, proteins, and pigments. is called?
The group of related organelles in plant cells that are involved in the storage of starches, fats, proteins, and pigments are called plastids.
Types of plastids:
There are different types of plastids, such as chloroplasts, which are responsible for photosynthesis and contain the pigment chlorophyll, and chromoplasts, which are responsible for pigment synthesis and storage. Each type of plastid has a specific function in the plant cell. Plastids have various types, including chloroplasts, chromoplasts, and leucoplasts.
Role of plastids:
Chloroplasts are responsible for photosynthesis, converting light energy into chemical energy. Chromoplasts contain pigments that give color to plant structures, such as flowers and fruits. The main function of plastids is to store essential molecules and facilitate specific cellular processes like photosynthesis and pigment synthesis.
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