Most living organisms need oxygen to stay alive. Insects need oxygen to reproduce, grow, and make energy from the food they eat. People get the oxygen they need by taking breaths through their mouths and noses into their lungs.
With the help of oxygen, our cells can break down food to make the energy we need to live.
Respiration is important because it gives the body the energy it needs to work. It gives the cells oxygen and lets out carbon dioxide, which is bad for the body. When oxygen gets into the cells, it shatters down the glucose from digested food into energy. Most living organisms need oxygen to stay alive. Insects need oxygen to reproduce, grow, and make energy from the food they eat. People get the oxygen they need by taking breaths through their mouths and noses into their lungs.
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Which crop is mentioned as declining in some areas due to climate change?
potatoes
rice
wheat
coffee
corn
Both rice and wheat are highlighted as crops that are diminishing in some areas as a result of climate change.
Which crops are impacted by climate change?The yields of some crops may improve as a result of warming temperatures and rising carbon dioxide levels, but yields of important food crops (including corn, rice, and oats) are predicted to be lower than they would be in the absence of climate change. The potential planting boundaries of single- and double-cropping rice production systems have shifted significantly northward as a result of climate change, which has a detrimental effect on the length of time that single-, early-, and late-cropping rice takes to grow. By the end of this decade, corn yields in nearly all of Iowa's counties will be 5% or lower than they would have been in the absence of climate change, according to the simulations. At least 10% of the population will experience declines.To learn more about climate change, refer to:
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Photosynthesis
and Respiration
After it is labeled, the diagram below will illustrate photosynthesis. Write each of the
following terms on the correct numbered line. Then answer the questions that follow.
Water
Carbon Dioxide
Glucose
Oxygen
Light
Chlorophyll
Answer:
Oxygen, Carbon dioxide, Glucose,Chlorophyll
There is no way to minimize the problem of the wolves attacking herds.
True
False
Answer:
False
Explanation:
I think that this is false because there are actually many things that people can do to prevent some consequences of wolves attacking herds, an example could be that people could put a tracking device on the wolves kind of like you might to a dog like a chip. There is a way to minimize the impact of wolves attacking herds because all someone has to do is watch the sheep and then set up some detectors on the land, and when the wolf tries to attack the sheep or herds, they won’t be able to because of the shock they will get, when trying to get past the electric fence.
C) State any two (2) shortfalls of Cell Theory.
The two shortfalls of Cell Theory are:
Ignores the complexity of cellsWhile the Cell Theory states that all living organisms are composed of cells, there are a few exceptions.What is the drawbacks of Cell Theory?The Cell Theory assumes that all cells are similar in structure and function, but in reality, there is a great deal of diversity in the size, shape, as well as the function of cells.
Moreover, the complexity of cells and their components is not fully captured by the Cell Theory, as it does not take into account the intricate subcellular structures and processes that exist within the particular cells.
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How does geographic isolation affect a population's gene pool?
Responses
It increases the rate of mutation in the gene pool.
It increases the rate of mutation in the gene pool.
It increases the rate of gene flow between populations.
It increases the rate of gene flow between populations.
It causes natural selection to remove harmful genes.
It causes natural selection to remove harmful genes.
It prevents gene flow between other populations.
Answer:
It prevents gene flow between other populations.
Explanation:
Geographic isolation can prevent gene flow between other populations by creating physical barriers that prevent individuals from one population from interbreeding with individuals from another population. This can lead to the accumulation of genetic differences between the isolated populations over time, as mutations and other genetic changes may occur independently in each population without being exchanged with other populations. As a result, the gene pool of each isolated population may become increasingly distinct and divergent from the gene pools of other populations. This process can eventually lead to the formation of new species.
Which rate of evolution BEST describes a fossil record that shows many different forms of the same organism over a long period of time?
gradualism
adaptive radiation
convergent evolution
punctuated equilibrium
The rate of evolution that best describes a fossil record that shows many different forms of the same organism over a long period of time is gradualism.
What is Gradualism?Gradualism is described as a theory that suggests that evolution occurs at a slow and steady pace over long periods of time, and that small changes accumulate over time to produce larger changes.
In this scenario, the many different forms of the same organism that are observed in the fossil record would be the result of gradual changes that occurred over a long period of time.
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Somebody pls help I need to pass this
Answer: Mitosis
Explanation:
1. Sporophyte produces haploid spores by meiosis
2. Spores germinate and divide by mitosis and develop into multicellular, haploid gametophytes
3. Gametophytes produce unicellular haploid gametes by mitosis
4. Two gametes unite during fertilization to form a diploid zygote
5. Zygote divides by mitosis and develops into a multicellular, diploid sporophyte.
What is the difference between analyzing and modifying one's DNA?
Answer:genetic information that a person has, so as to predict or better understand the traits or diseases that she or he may develop.
Explanation:
What size is the crystal in an extrusive igneous rock?
3. Although all intrusive igneous rocks form in the same location, there are still different methods
of formation.
A. What are three methods of intrusive igneous rock formation? (3 points)
B. What happens during each method to form intrusive igneous rocks? (3 points)
Answer:
A. Three methods of intrusive igneous rock formation are:
Solidification of Magma
Fractional Crystallization
Assimilation
B. The following happens during each method to form intrusive igneous rocks:
Solidification of Magma: In this method, magma cools and solidifies underground. As the magma cools, crystals form, and the minerals in the magma become more concentrated. Over time, the magma solidifies into a pluton or a body of intrusive igneous rock.
Fractional Crystallization: In this method, minerals in the magma crystallize at different temperatures. As the magma cools, minerals that crystallize at higher temperatures settle out first, leaving a residual magma that is enriched in minerals that crystallize at lower temperatures. This process continues until all the minerals have crystallized, forming a body of intrusive igneous rock.
Assimilation: In this method, magma from a magma chamber intrudes into and melts surrounding rocks. As the magma moves through the rocks, it assimilates some of the rock material, which then becomes part of the magma. The assimilated material can cause changes in the composition of the magma, which can lead to the formation of a different type of intrusive igneous rock.
Explanation:
What is an example of Biology
Answer: the study of birds in ornithology
Explanation: biology is the study of something , such as birds .
here's an example of biology:
Photosynthesis is a biological process that occurs in plants and other photosynthetic organisms. It involves the conversion of light energy from the sun into chemical energy that is stored in glucose and other organic molecules.
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A cross between a dihybrid individual (heterozygous for two traits) and a homozygous recessive individual for the same two traits produces these phenotypes as offspring: parental phenotypes 526 and 542, and recombinant phenotypes 22 and 24.
A. these genes are not linked
B. these genes are on different chromosomes
C. these genes are linked
D. these genes sort independantly
can someone explain why is it c
The offspring of a dihybrid individual (heterozygous for two traits) crossed with a homozygous recessive individual for the same two traits will produce parental phenotypes 526 and 542, and recombinant phenotypes 22 and 24.
The dihybrid individual will possess two different alleles for each of the two traits, whereas the homozygous recessive individual will possess two recessive alleles for each trait. The parental phenotypes (526 and 542) will have the same alleles as the dihybrid parent, while the recombinant phenotypes (22 and 24) will have one allele from each parent. The offspring will then express the phenotype that is determined by the combination of alleles inherited from the two parents.
What is homozygous recessive trait?
Homozygous recessive trait is a trait that is expressed when an organism has two identical recessive alleles for a particular gene. It is the opposite of a homozygous dominant trait, which is expressed when an organism has two identical dominant alleles for the same gene.
In conclusion, the offspring of a dihybrid individual crossed with a homozygous recessive individual will produce parental phenotypes 526 and 542, and recombinant phenotypes 22 and 24.
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Why are trees considered natural resources? a. They provide valuable shade that no other resource can provide. b. Humans use them to produce paper, lumber, fuel, and other products. c. They are an important source of firewood for campfires. d. They grow back after they're cut down.
Answer:
Explanation:
The correct answer is b. Trees are considered natural resources because humans use them to produce paper, lumber, fuel, and other products. Trees provide a renewable resource that can be harvested and used for a variety of purposes. They also play an important role in the environment by producing oxygen, providing habitats for wildlife, and helping to regulate the climate. While trees can provide valuable shade and be a source of firewood for campfires, these factors alone do not fully explain why they are considered natural resources.
A set of physiological responses regulated by the peripheral nervous system and inductive of rest is called the
response.
Answer:
A set of physiological responses regulated by the peripheral nervous system and inductive of rest is called the relaxation response.
Explanation:
2. Scientists use seismic waves to study inner Earth.
A. How are seismic waves formed? (2 points)
B. What are two characteristics of P waves? (2 points)
C. What are two characteristics of S waves? (2 points)
D. How do absorption, reflection, and refraction change the movement of P waves? (6 points)
Answer:
A. Seismic waves are formed by the sudden release of energy, such as from an earthquake, explosion, or human-made source.
B. Two characteristics of P waves, also known as primary waves, are that they are longitudinal waves that travel through solids, liquids, and gases, and they are the fastest seismic waves.
C. Two characteristics of S waves, also known as secondary waves, are that they are transverse waves that can only travel through solids, and they are slower than P waves.
D. Absorption, reflection, and refraction can change the movement of P waves in several ways:
Absorption: P waves can lose energy and become weaker as they travel through different materials, such as soil, rock, or water.
Reflection: P waves can bounce off a boundary between two different materials, such as the boundary between the Earth's crust and mantle, causing them to change direction.
Refraction: P waves can change direction as they pass through materials with different densities or elastic properties, such as the boundary between the Earth's mantle and core. The change in direction can cause P waves to bend, speed up, or slow down.
Explanation:
Hello there,
Introduction:
Seismic waves are a unique feature that Scientists get from Earthquakes.
Seismic waves are vibrations that essentially travel through Earth carrying the energy released during an earthquake. The three types of seismic waves are P waves, S waves and surface waves.
P waves, or primary waves, are a type of seismic wave that compresses and expands the ground. This type of wave moves the fastest and can go through both solids and liquids.
S waves, or secondary waves, are a type of seismic wave that moves the ground up an down or side to side. S-waves can NOT go through liquid and are slower than P waves.
Surface waves are when P waves and S waves reach the Earth's surface. Surface waves are by far the most dangerous.
Questions:
A How are seismic waves formed? (or produced)
Seismic waves are initially generated by the juddering of rock surfaces as they grind past each other when forces overcome friction. The fault interface is not smooth like many imagine. Its faces are dotted with protrusions of a range of sizes which before the quake mesh and grind together. These features are called asperities and can be as small as rock crystals on the size of a hillside.
The shearing and tearing of the asperities under unimaginable forces created a broad spectrum of frequencies within the event as a whole. If you rub two rocks together, you'll feel vibrations as the surface push past each other, and hear the vibrations as they're transferred to your ear through the air.
However this is just the beginning. The fault, or weakness in the rocks, may be many km long and if a lot of force is present over a wide area the fault failure will spread along it in a gigantic lurch. The crack, if you will, grows from initial failure outwards at a speed of many kilometers per second with each segment of the failing fault generating its own source of vibration. The changes in stress the quake creates may also be sufficient to make adjoining rock interfaces or fault break. The end result is a three dimensional network of vibrational sources which evolves over the seconds or minutes the complete event takes. And this sends a community of seismic waves radiating outwards.
Also, these waves are attenuated as they travel, some travelling deep others to the surface. But the net result is that when we experience a quake it's vibrations created by the grinding and tearing of rock.
B What are two characteristics of P waves?
Fastest waveA longitudinal (compression) waveC What are two characteristics of S waves?
A transverse waveCannot travel through a liquidD How do absorption, reflection, and refraction change the movement of P waves?
Each have a separate effect on P waves.
- Absorption reduces the energy of P waves.
- Reflection will reflect or bounce P waves back and fourth.
- Refraction will change refract or change direction of the P-waves (based on what surface they are spiraling off of or bouncing off of).
Thank you,
Eddie
Which kind of research is most likely to improve the health of the
environment?
A lot of kinds of research.
Renewable energy research. Research in habitat conservation. Research into less harmful pesticides. Recycling research. Anything research that results in positive change for the environment.
Having multiple crossovers between two genes that are far apart, and that result in the original arrangement being passed on, cause what?
A) Underestimation of distance between genes
B) No change to distance calculations
Answer:
A) Underestimation of distance between genes.
Explanation:
Multiple crossovers between two genes that are far apart, and that result in the original arrangement being passed on, can cause underestimation of the distance between the genes. This is because the frequency of multiple crossovers decreases as the distance between the genes increases, producing fewer recombinants. As a result, the distance between the genes appears shorter than it actually is, leading to an underestimation of the genetic map distance.
The correct answer is A) Underestimation of the distance between genes. Having multiple crossovers between two genes that are far apart can result in the original arrangement of alleles being restored. This phenomenon, known as double crossovers, can lead to an underestimation of the distance between two genes.
What is meant by double crossover?Double crossovers are a type of genetic recombination event that occurs during meiosis, the process by which cells divide to form gametes. During meiosis, homologous chromosomes exchange genetic material through a process called crossing-over, which results in the formation of recombinant chromosomes.
When can double crossover occur?Double crossovers occur when two or more crossovers happen between two loci that are far apart from each other. If two crossovers occur, the exchange of genetic material between the homologous chromosomes can result in the original parental arrangement of alleles being restored.
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QUICK/URGENT! (image)
Answer:
Continents: Fossil locations and Rock ages.
Both: Rock type, Climate, and Magnetic stripes.
Ocean Basin: Surface features.
Hope it helped! :)
Question 4 (2 points)
Jose Marti was a Spanish General fighting against the United States.
O True
O False
Yes, The answer is TRUE :D
Why are cyanobacteria important to early Earth?
A. Cyanobacteria stopped the formation of rust in Earth's crust
B. Cyanobacteria preceded the first photosynthetic organisms
C. Cyanobacteria are the first photosynthetic organisms
D. Cyanobacteria produced iron in Earth's crust
Answer:
Cyanobacteria played an important role in the evolution of Early Earth and the biosphere. They are responsible for the oxygenation of the atmosphere and oceans since the Great Oxidation Event around 2.4 Ga, debatably earlier.
Explanation:
hope it helps.
Describe four different types of drugs and their impact on sports performance
Evaluate the impact of four different performance-enhancing drugs on performance in four different types of sport
9
Discuss, using relevant examples, why some individuals may resort to using performance-enhancing drugs in sport
Types of drugs and their impact on sports performance:
Anabolic Steroids: Anabolic steroids are synthetic hormones that mimic the effects of testosterone, which is responsible for muscle growth and repair. The use of anabolic steroids increases muscle mass, strength, and endurance. They are commonly used in sports such as weightlifting, bodybuilding, and sprinting.
Stimulants: Stimulants such as caffeine, amphetamines, and cocaine can enhance performance by increasing alertness, reducing fatigue, and improving reaction time. They are commonly used in sports such as cycling, endurance running, and sprinting.
Human Growth Hormone (HGH): HGH is a hormone that stimulates cell growth and regeneration. It is used to increase muscle mass, strength, and endurance. HGH is commonly used in sports such as weightlifting, bodybuilding, and sprinting.
Erythropoietin (EPO): EPO is a hormone that stimulates the production of red blood cells, which carry oxygen to the muscles. It is used to increase endurance by improving oxygen delivery to the muscles. EPO is commonly used in sports such as cycling, distance running, and cross-country skiing.
Impact of performance-enhancing drugs on performance in different sports:
Anabolic Steroids: Anabolic steroids can have a significant impact on performance in weightlifting and bodybuilding by increasing muscle mass and strength. They can also improve sprinting performance by increasing power and speed.
Stimulants: Stimulants can improve performance in endurance sports such as cycling and long-distance running by reducing fatigue and improving reaction time. They can also improve sprinting performance by increasing alertness and reaction time.
Human Growth Hormone (HGH): HGH can have a significant impact on performance in weightlifting and bodybuilding by increasing muscle mass and strength. It can also improve sprinting performance by increasing power and speed.
Erythropoietin (EPO): EPO can improve performance in endurance sports such as cycling and distance running by increasing the number of red blood cells, which improves oxygen delivery to the muscles. It can also improve performance in cross-country skiing by increasing endurance.
Reasons for using performance-enhancing drugs in sport:
Competitive pressure: Athletes may feel pressure to win at all costs, and may resort to using performance-enhancing drugs to gain a competitive edge.
Financial gain: Some athletes may see the use of performance-enhancing drugs as a way to earn more money by winning competitions and endorsements.
Desire for fame and recognition: Athletes may use performance-enhancing drugs to achieve fame and recognition in their sport.
Self-esteem issues: Some athletes may use performance-enhancing drugs to improve their self-esteem and body image.
Injury recovery: Athletes may use performance-enhancing drugs to speed up their recovery from injuries and get back to competition faster.
Lack of knowledge or education: Some athletes may not fully understand the risks associated with using performance-enhancing drugs, or may not be aware that they are using them.
Do the producers in a rainforest affect the climate there?
About 20% of the oxygen we exhale is produced by rainforests, and those who hold a significant quantity of carbon dioxide, thus massively reducing greenhouse gas emissions.
What effects do rainforests have on the climate?Rainforests influence local weather by producing precipitation and regulating temperature. By respiration, which is the function of water moving through a plant and being released into the atmosphere via leaves, stems, and flowers, rainforests contribute to rainfall.
What factors influence the climate in rainforests?Actions in the Jungle, whether natural and human-caused, have the potential to significantly alter the rainforest's contribution to global warming by either directly warming the air or by releasing other greenhouse gases. For instance, logging can compact soil and dry out wetlands, which increases nitrous oxide emissions.
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How can data collection help us learn about local biodiversity?
Data collection can help us learn about local biodiversity by providing us with information about the species in a particular area, and the current population numbers.
What is local biodiversity?The diversity of living forms found within a particular ecosystem or geographic region is known as local biodiversity. It contains all the plants, animals, fungi, and microorganisms that reside in a certain region. Humans rely on a range of resources and services, such food, water, and pollination, which is why biodiversity is significant.
In order to keep ecosystems healthy and provide habitat for a range of species as well as protection against environmental changes, local biodiversity is also important.
In summary, information can be used to identify areas of biodiversity hot spots, prioritize conservation efforts, and develop strategies to protect species. Data collection can also help us understand the impacts of human activities on biodiversity and determine how to balance development and conservation.
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show a chart for the cross for one heterozygous guinea pig and a homozygous dominant guinea pig
In complete dominance, the dominant allele hides the expression of the recessive one when they are together in the same genotype. 1) a- 100% will have short hair. b) 0% long hair. 2) Both parents are heterozygous, Ss.
What is complete dominance?
Complete dominance is an inheritance pattern that occurs when the dominant allele completely masks the recessive allele.
The presence of at least one dominant allele in genotypes is enough to express the dominant pahenotype.
Homozygous dominant and heterozygous individuals express the dominant phenotype coded by the dominant alleleHomozygous recessive individuals express the recessive phenotype, coded by the recessive allele.In the exposed example,
Short hair is coded by the dominant allele SLong hair is coded by the recessive allele s1)
Cross 1: one heterozygous with a homozygous dominant
Parentals) Ss x SS
Gametes) S s S S
Punnett square) S s
S SS Ss
S SS Ss
F1) Genotype
50% of the offspring is expected to be homozygous dominant, SS50% of the offspring is expected to be heterozygous, SsPhenotype
100% of the offspring is expected to have short hair1) a- 100% of the progeny will have short hair
1) b- 0% of the progeny will have long hair
2)
Cross 2: between two short-haired individuals
F1) 25% long-haired individuals
If among the progeny both phenotypes are expressed, it means both parents carry the recessive allele in their genotypes, otherwise only the dominant phenotype would appear.
Parents) Ss x Ss
Gametes) S s S s
Punnett square) S s
S SS Ss
s Ss ss
F1) 75% of the progeny is expected to hace short hair (25% SS + 50% Ss)
25% of the progeny is expected to have long hair (25% ss)
2)a- Parents genotype:
mother Ss father SsYou will find the complete question in the attached files.
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Mathematical representations to predict how energy, biomass and number pyramids respond to change in environmental conditions
To predict how these pyramids respond to changes in environmental conditions, we can use mathematical models that describe the interactions between organisms and their environment.
What is the application of Mathematical representations to predict how energy, biomass and number pyramids respond to change in environmental conditions?Mathematical representations can be used to predict how energy, biomass, and number pyramids respond to changes in environmental conditions by applying ecological models that describe the relationships between organisms and their environment.
Energy pyramids represent the flow of energy through a food chain or ecosystem, with producers at the bottom and higher trophic levels at the top. Biomass pyramids represent the total biomass or weight of all organisms in each trophic level, and number pyramids represent the total number of individuals in each trophic level.
Overall, mathematical representations are useful tools for predicting and understanding how ecological systems respond to changes in environmental conditions. They can help inform conservation and management strategies to maintain healthy and sustainable ecosystems.
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What percentage represents the reduction of elks due to the reintroduction of wolves to Yellowstone?
10 percent
30 percent
45 percent
50 percent
as a result of natural selection species with mostly survive
As a result of natural selection, species that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring.
What is natural selection?Natural selection favors traits that improve an organism's ability to survive and reproduce in a particular environment, while eliminating those that are detrimental.
For example, consider a population of birds living in a forest with brown and green leaves. If a mutation arises that gives some birds better camouflage against brown leaves, these birds will be more likely to survive and reproduce, passing on this advantageous trait to their offspring.
Over time, the proportion of birds with the advantageous trait will increase in the population, while those without it will decrease. Eventually, the population may become dominated by birds with the advantageous trait, resulting in a new subspecies that is better adapted to living in a forest with brown leaves.
In summary, natural selection favors traits that improve an organism's ability to survive and reproduce in a particular environment, and species that are better adapted to their environment are more likely to survive and pass on their advantageous traits to their offspring.
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5. Earthquakes are often found along transform boundaries.
A. How do the plates move along these boundaries? (5 points)
B. What is a famous example of one of these boundaries in the United States? (3 points)
Answer: The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways in relation to each other. They move at a rate of one to two inches (three to five centimeters) per year.
Explanation: I wrote it
Answer:
WHEN TECTONIC PLATES GET MOVED THEN THAT MOVEMENT CAUSE EARHQUAKE
IN NEPAL EARTHQUAKE CAME MANT TIMES AND ALWAYS THE REASON WAS SAME U KNOW WHAT THE MOVEMENT OF TECTONIC PLATES
In humans, Albinism (being an Albino) is a recessive trait. What are ALL of the possible genotypes and
phenotypes of the parents for an offspring to be born albino? (Hint: You may need to draw out different
possible scenarios using Punnett Squares).
Answer:
To have an albino offspring, both parents must be carriers of the recessive gene for albinism. Therefore, the possible genotypes for the parents are:
AA (not a carrier) x aa (carrier)
aa (carrier) x AA (not a carrier)
Aa (carrier) x Aa (carrier)
Using Punnett squares to determine the possible offspring:
AA x aa: all offspring will be Aa carriers (phenotype: not albino)
aa x AA: all offspring will be Aa carriers (phenotype: not albino)
Aa x Aa: 25% of offspring will be aa (phenotype: albino), 50% will be Aa carriers (phenotype: not albino but carrying the gene), and 25% will be AA (phenotype: not albino)
Therefore, the only scenario where an offspring can be born albino is if both parents are carriers (Aa) and they have a child with the genotype aa.
Which lymph node is not clustered in a group?
a. preaortic
b. inguinal
c. inguinal
d. submental
which statement best describes the composition of diatom shells?
They are smaller boxes with lids, composed of silica
They have two sets of grooves that contain flagella
They are box like structures, composed of cellulose
The shell is a flexible pellicle that can change shape
The covering is a calcium shell called a test
They are like small boxed with lids composed of silica statement best describes the composition of diatom shells.
Option A is correct.
How do diatom shells work?Diatoms are a kind of freshwater green growth with siliceous shells (made of silica). They live in "glass houses" literally. A diatom's shell is made up of two sections that are different sizes and can be wedge- or round-shaped.
What purpose do diatom shells serve?The natural material of diatom shells, which are made of silicon dioxide and can theoretically be made in any quantity, has regular patterns of pores that penetrate their surface. Diatom shells have the potential to be utilized as low-cost, highly effective drug carriers, sensor devices, or other microdevices due to their characteristics.
Question incomplete:
which statement best describes the composition of diatom shells?
A. They are smaller boxes with lids, composed of silica
B. They have two sets of grooves that contain flagella
C. They are box like structures, composed of cellulose
D. The shell is a flexible pellicle that can change shape
E.The covering is a calcium shell called a test
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