Answer: In simple diffusion, small noncharged molecules or lipid soluble molecules pass between the phospholipids to enter or leave the cell, moving from areas of high concentration to areas of low concentration (they move down their concentration gradient).
Explanation:
Which term describes the process of sister chromatids not separating at the centromere during cell division?.
The term nondisjunction describes the process of sister chromatids not separating at the centromere during cell division.
during the metaphase time of cell division, the chromatids are aligned at the center of a cell known as the centromere. The mitotic spindle present on each end of the cell pulls these chromosomes so that each cell receives half the number of chromosomes after cell division.
However, if the chromosomes do not separate to their sides at that time then this is referred to as non-disjunction.
The process of nondisjunction might occur because the chromosomes were unable to separate themselves during the anaphase of cell division.
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HURRRRRY
Identify the structures in the cell pictured on the right.
Label A
Label B
Label C
Label D
A prokaryotic cell is labeled. Part A is the outside of the cell. Part B is the inside of the cell. Part C are the small dots inside the cell. Part D is the large swirly structure inside of the cell.
Explanation:
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compare and contrast the energy of moving water and the energy of water that is stored.
I need to get it done right now.. it is pass due
The energy of the moving can be transferred from one object to another while the energy of a stored water can't be transferred.
What is Potential energy?This is referred to as the type of energy which is possessed by a body by virtue of its position while on the other hand, kinetic energy is the type of energy which is possessed by a body by virtue of its motion. The formula for potential energy is mgh while that of kinetic energy is 1/2mv² .
The energy of moving water is kinetic and the energy of water that is stored is potential. Parameters such as the height are common with stored energy in the object or body
Kinetic energy has parameters such as velocity which makes it to be transferred from one body to another and helps to denote the movement thereby making it the correct choice.
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The main functions of blood are to A digest food and break it down to be used as energy. B carry oxygen, nutrients, and wastes; fight disease; and regulate temperature. C carry messages through all the body to direct body movement. D carry messages to parts of cells to tell them how to develop.
6. If a hippo is represented by a 2cm x 4cm x 4cm block, what would its surface area to volume ratio be? Show your calculations.
The surface area to volume ratio of the Hippo is 1.
What is the surface area to volume ratio of an organism?The surface area to volume ratio of an organism is the ratio of the total surface area of the organism to the volume of the organism.
The surface area to volume ratio of an organism is critical to its development. This is because organisms need to exchange substances with their environment. The organisms take in food nutrients and water, and then remove waste products of metabolism.
For small, simple unicellular organisms, simple diffusion is sufficient for the exchange of materials with the environment due to their greater surface area to volume ratio.
However, for larger and more complex organisms, simple diffusion cannot suffice for the exchange of materials because of their smaller surface area-to-volume ratio.
The surface area of the hippo = 2 cm * 4 cm + 2 cm * 4 cm + 4 cm * 4 cm
The surface area of the hippo = 32 cm²
The volume of the hippo = 2 cm * 4 cm * 4cm
The volume of the hippo = 32 cm³
The surface area-to-volume ratio = 32 / 32
The surface area to volume ratio = 1
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you perform an experiment like that performed by fraenkel-conrat and singer on tmv. however, in the first step when the viruses are reconstituted, you decide to add rnase to your hr rna and wild-type proteins. what will be the content of the newly made viral proteins after the reconstituted virus is placed on leaves?
The protein will contain histidine and methionine will be the content of the newly made viral proteins after the reconstituted virus is placed on leaves.
What does protein do in the body?Protein is present in every human cell. The amino acid chain makes up the basic building block of proteins. In order for the body to repair damaged cells and create new ones, you require protein in your food. Children, teenagers, and expectant women all need proteins for healthy development and growth.
Can you live without protein?However, since we cannot store protein, we can only go up to 70 days without any protein. Protein is indeed the sole nutrient that we must consume consistently in order to flourish since we can't produce this from scratch and we can't store extra.
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If you pinch your nose while you are putting a piece of food into your mouth, what are you going to experience?.
If you pinch your nose while putting food in your mouth, you may experience lack of taste in the food.
It did appear that smell had an impact. However, the ability to taste was not completely impaired by nose plugs. Chewing certain foods allows aromas to reach the nose through the back of the mouth even when the nostrils are closed because the nose and throat share essentially the same airway.
Molecules from your food travel up your throat to the olfactory epithelium, where they activate odor receptors, when you eat.
Retronasal olfaction, as opposed to orthonasal olfaction, which occurs when you sniff through your nose, is prevented by pinching your nose. Retronasal olfaction is very important to your sense of flavor, which many other people mistake for "taste.", we can demonstrate this with jelly beans: you can still taste the sweetness of the jelly bean by pinching your nose, but you can't tell the difference between a strawberry and a grape. One of the most common complaints made by people who have lost their sense of smell is that food no longer "tastes" good because it lacks a lot of flavor.
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two structures that help E. coli move???
I NEED HELPP
PLEASE
the human immunodeficiency virus (hiv) uses rna, rather than dna, to encode genetic information. during infection, however, hiv uses an enzyme known as reverse transcriptase to generate double-stranded dna. generally speaking, how would the enzyme generate a double strand of dna from a single strand of rna?
In order to create a second strand of DNA that is complementary to the first one, reverse transcriptase first catalyzes the synthesis of a DNA copy from the viral RNA.
What is DNA?Single-stranded RNA is transformed into DNA by the DNA polymerase enzyme reverse transcriptase (RT), also known as RNA-dependent DNA polymerase. This enzyme can produce a double helix DNA after the RNA has been reverse transcribed in a first step into a single-strand DNA.Transcription is the first step in gene expression. The DNA sequence of a gene needs to be duplicated in order to produce an RNA molecule. Transcription is carried out by RNA polymerases, which combine nucleotides to form an RNA strand.The process of producing RNA from the genetic material found in DNA is called transcription. RNA polymerases, which combine nucleotides to make an RNA strand, carry out transcription.In order to create a second strand of DNA that is complementary to the first one, reverse transcriptase first catalyzes the synthesis of a DNA copy from the viral RNA.To learn more about DNA refer to:
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In a neuron, the long process extending from the neurosoma that carries output signals to other cells is the?.
The long process extending from the neurosoma that carries output signals to other cells is the axon of a neuron.
A neuron is in charge of processing and relaying the electrical signals involved in absorbing sensory input, providing motor instructions to our muscles, and controlling movement.
Axons, which are extremely thin nerve fibers, are responsible for transporting nerve impulses or output signals from one neuron (nerve cell) to another neuron. One axon connects each neuron to other neurons, muscle cells, or glandular cells. Axons are found at the specialized location on a neuron called the axon hillock.
Therefore, the long process extending from the neurosoma of neurons is the axon.
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evidence for the spiral nature of dna came from . a. studies of disease-causing bacteria b. base rule studies c. bacteriophage studies d. x-ray crystallography studies
Studies using x-ray crystallography provided proof of DNA's spiral structure.
How did Watson and Crick figure out what DNA's structure was?Watson and Crick came up with a structure for DNA using proportionate metal models of the individual nucleotides that was in agreement with Chargaff's Rules and with x-ray crystallography data that was received (with some debate) from another researcher by the name of Rosalind Franklin.
Using X-ray diffraction, Franklin and Maurice Wilkins discovered hints concerning the structure of DNA. Franklin's "photograph 51" X-ray diffraction image of DNA demonstrated that DNA crystals take the form of an X on the film used for X-rays. These X-shaped patterns are common in molecules with helical shapes.
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In glycolysis, a glucose molecule is split into two molecules of ______, and energy is harvested as atp and nadh.
A glucose molecule is split into two molecules of Pyruvate molecules.
An essential molecule in biology is pyruvate. It is a byproduct of the glucose metabolism process called glycolysis. One of two processes results in the breakdown of one glucose molecule into two pyruvate molecules, which are then used to produce further energy.
Pyruvate enters the citric acid cycle under aerobic conditions and proceeds through oxidative phosphorylation, which results in the net synthesis of 32 ATP molecules. Pyruvate is converted to lactate in anaerobic conditions by anaerobic glycolysis. During anaerobic respiration, two ATP molecules are produced.
The end product of glycolysis, an anaerobic process that breaks down glucose, is pyruvate. Pyruvate can be transformed into ethanol, the amino acid alanine, fatty acids or energy through acetyl-CoA, carbohydrates through gluconeo genesis, and fatty acids or energy.
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bowling ball collides with a pin and pushes the pin toward the right. Which describes the reaction force?
The pin pushes the bowling ball toward the right.
The pin pushes the bowling ball toward the left.
The bowling ball pulls the pin toward the right.
The bowling ball pulls the pin toward the left.
The pin pushes the bowling ball toward the left.
Explanation:
Because Newton's third law of motion states that for every action there is an equal and opposite reaction the only possible answer is The pin pushes the bowling ball toward the left.
Answer:
The pin pushes the bowling ball toward the left.
Reaction force is always equal but opposite in direction.
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what characterizes all ecdysozoans? ecdysozoans practice suspension feeding. ecdysozoans reproduce clonally (asexually). ecdysozoans are sessile (don't move) in the adult stage. ecdysozoans grow by molting.
All ecdysozoans grow by molting. This characteristic applies to all ecdysozoans.
The epidermis then secretes a new exoskeleton, which is soft until the remnants of the old cuticle that was laying on top are shed during ecdysis. The fresh cuticle then grows and becomes harder. Only because ecdysozoans are adept at molting does this procedure in nature appear to be straightforward.
What are some features of ecdysozoans?
Ecdysozoans are most known for their cuticle, a thick yet flexible exoskeleton that shields these creatures from predators, water loss, and other elements of their environment. As they develop, every member of this superphylum molts or sheds its cuticle on occasion.
Therefore, All ecdysozoans grow by molting.
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Suppose you are studying a fruit fly's DNA (drosophila melanogaster) and you discover a gene for antenna length on chromosome # 2. What word describes its location, and where would it be found in other fruit flies DNA?
The word that describes the location of the gene for antenna length on chromosome #2 of the fruit fly is called locus. In the DNA of other fruit flies, the gene will be found at the exact same locus.
Antenna is the sensory organ present on the head of many insects. They are present in a pair. The antennae can be sensitive to touch, smell or any other senses. Due to their ability to sense or feel, they are also called feelers.
Locus is defined as the location or the physical place on the chromosome where a gene is present. The word locus is used to define the address of any particular gene. The loci are fixed for a gene in all the chromosomes of any organism.
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pls help once i finish this i can sleep!!!!
Identify the brain stem in the diagram below.
C
A
D
B
The answer is A.
I wish you a restful sleep.
effects of poor sanitation
Answer: diseases and it'll lead to pollution
Explanation:
Which type(s) of genetic material can viruses have? Check all that * 5 points apply. [4 answers]
Which part of a cell is the fluid environment where molecules are broken down and new molecules made?
mitochondria
cell membrane
cytoplasm
cytosol
what does it mean for two codons to be synonymous?group of answer choicesthey share two of the same nucleotides in their codon sequence.they encode the same amino acid.they share one of the same nucleotides in their codon sequence.they occur in equal abundance in an mrna sequence.they are adjacent on the mrna.
Synonymous codons are different codons that encode the same amino acid.It has been demonstrated for all creatures that the distribution of these codons in a genome is not random, despite the fact that synonymous codons encode the same amino acid.
What does it mean for two codons to be synonymous?
The ratio of the observed codon frequency to the anticipated frequency, assuming that all synonymous codons for the same amino acid are used equally, is known as relative synonymous codon usage, or RSCU. Previously, it was believed that synonymous variants, which are codon substitutions that do not modify the encoded amino acid, had no impact on the characteristics of the protein that was made. The mRNA is then dragged into the ribosome, where it is translated into an amino acid sequence utilizing the tRNAs as adaptors to add each amino acid in the proper order to the end of the expanding polypeptide chain when its codons come into contact with the ribosome's active site. The entire collection of codons is referred to as the genetic code. Each codon stands for a single amino acid (or stop signal).There are 64 different three-letter nucleotide sequences that can be created from the four nucleotides, or permutations, that make up the genetic code. Each codon gives the cell instructions on whether to begin building a protein chain, add a particular amino acid to the expanding protein chain, or stop building a protein chain altogether.For instance, the messenger RNA codon GCA indicates that alanine will be added to the protein chain. Synonyms are codons that both encode the same amino acid.The redundancy or degeneracy of the genetic codon is the term used to describe this particular characteristic of genetic code.Only twenty amino acids can be linked to the 64 potential codons in an organism. Protein sequences are altered by nonsynonymous mutations, which are commonly exposed to natural selection.The same is true for nonsense mutations that cause CDSs to contain premature stop codons (coding sequences).However, synonymous mutations are intuitively believed to be neutral in terms of evolution and functional silenceSynonymous mutations occur when the DNA sequence that codes for the amino acids in a protein sequence is altered without altering the amino acid that is encoded.These modifications typically take place in the third position of a codon because of the genetic code's redundancy (many codons represent the same amino acid).To learn more about amino acid refer
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Consists of one sugar, one base and 2 phosphates what is it
Answer:
Sugar phosphate backbone of DNA
Explanation:
Which is the graph of the linear inequality 2*-3y<12
For the graph of the linear inequality 2*-3y<12, Based on the graph, Option 3 is the one that should be chosen.
This is further explained below.
What is graph?Generally, The graph of the
Inequality 2 x-3 y<12
Solve for y,
2 x-12<3 y
[tex]y > \frac{2}{3} x-4[/tex]
Now that we have the x-intercept and the y-intercept, we can draw the graph of the equation.
The x-intercept is when y equals zero,
2/3x-4=0
2/3 x=4
x=6
the y-intercept is when x=0
2/3(0)-4=y
y=-4
Therefore, the graph must pass between points (0,-4) and (6,0).
Now, we can determine that the area of the graph is
In conclusion,
Put x=0 and y=0
2(0)-3(0)<12
0<12
This is correct. Therefore, the area is moving toward its source.
The line is not continuous since the inequality does not contain an equal sign.
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List four different Bible phrases that show how the Bible claims to be the Word of God.
40-point mark as brainly
Answer: 1. God created the heavens and the earth. 2. He sent his son to die for our sins. 3. he preforms mericles. 4. He Arose from the grave.
Explanation:
All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be competent, equipped for every good work. (2 Timothy 3:16-17)
It is the Spirit who gives life; the flesh is no help at all. The words that I have spoken to you are spirit and life. (John 6:63)
Every word of God proves true; he is a shield to those who take refuge in him. (Proverbs 30:5)
For the word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and of spirit, of joints and of marrow, and discerning the thoughts and intentions of the heart. (Hebrews 4:12)
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What is the density of seawater with a temperature of 10°C and a salinity of 35 ppt?
Answer:
P(T)=P+ a1*T+a2*T2+a3*T3+a4 *T4+a5 *T5
Explanation
Given that the temperature = 10 degrees Celsius
Salinity= 35ppt
Density of the seawater is 996.73 kg/m3
If one nerve stimulus arrives at a muscle fiber so soon that the fiber has only partially relaxed from the previous twitch, the most likely result will be __________.
If one nerve stimulus arrives at a muscle fiber so soon that the fiber has only partially relaxed from the previous twitch, the most likely result will be paralyze.
What is nerve?The lag phase refers to the interval between a motor neuron's activation and the onset of muscle contraction (sometimes called the latent phase). A signal known as an action potential travels to the motor neuron's end during the lag period (axon terminal).
Acetylcholine is released as a result, and the motor end plate depolarizes. The sarcoplasmic reticulum releases calcium as a result of the depolarization, and calcium then binds to troponin, exposing the myosin binding site.
The actual muscular contraction that creates tension in the muscle occurs next. The contraction phase is the following stage. Actin and myosin cross-bridges form during the contraction phase. Actin is moved by myosin, which also releases and modifies cross-bridges.
Therefore, If one nerve stimulus arrives at a muscle fiber so soon that the fiber has only partially relaxed from the previous twitch, the most likely result will be paralyze.
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which of the following does not occur due to the effects of aging on the joints? select one: a. decreased range of motion b. decreased flexibility and elasticity c. increased production of synovial fluid d. weakening of muscles e. decreased tissue repair
Increased production of synovial fluid does not occur due to the effects of aging on the joints
Bones do not directly touch one another in a joint. They are padded by articular cartilage, which lines your joints, synovial membranes around the joint, and lubricating fluid inside your joints (synovial fluid). The amount of lubricating fluid inside your joints diminishes as you aging, and the cartilage gets thinner, making joint movement stiffer and less flexible. Joint stiffness is also often caused by the tendency of ligaments to shorten and lose some flexibility.
Lack of exercise is a major contributor to many of these joint changes that come with ageing. The fluid is kept moving by joint movement and the corresponding "stress" that comes with it. The cartilage contracts and stiffens with inactivity, decreasing joint mobility.
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The layer of the Earth
where all life exists is
called the
a. Mantle
b. Crust
c. Inner Core
d. Outer Core
Answer:
b. Crust
Explanation:
The correct Answer is b. crust
how might the cost of medical technology influence the choices to people?
Answer: so how might the cost of medical technology influence the choices of people? Well that would depend on how exexpensive what was needed how much was needed how bad in ininflation
Explanation:
Researchers generally agree that medical technology has contributed to rising health care costs (1-3). Health insurance removes financial barriers to consumers, thus raising demand for technology and inducing providers to offer a more expensive mix of services.
the lemurs of madagascar are a highly diverse group of wet-nosed primates. there are several specialist groups of lemurs, such as the aye-aye that exploit ecological niches that are unavailable in other areas of the world. the reason for their diversity is most likely:
Lemurs, according to biologists, must have descended from primates on the continent of Africa. These mammals may have survived among powerful like dinosaurs because they were small and nocturnal.
Describe lemurs.Active, arboreal primates with whiskers and a snout resembling that of cats; their soft fur ranges in color from reddish brown through gray to black. Prosimians is another name for them and it means "before apes." Lemurs continue to display characteristics of early primates, such as a tiny brain casing and a large nose.
Are lemurs monkeys or cats?Lemurs belong to the order of primates, which also includes monkeys, apes, and humans. Currently, there are about 32 different varieties of lemurs, each of which is native to Madagascar, a single island nation off of the southeastern coast of Africa.
principal predator of Lemurs inhabit the fossa, but they are vulnerable to exotic species, big boas, hawks, and other predators.
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If you found the same gene in all organisms you test, what does this suggest about the evolution of this gene in the history of life on earth
Answer:
This suggests that the gene has probably not evolved in the history of life on earth and probably has been present for many generations.