Scientists figured out that the outer core must be liquid because S waves do not pass through it, but P waves do. The behavior of P and S waves also indicates that the inner core is solid. The speed of seismic waves also depends on the density of the material through which they are traveling.
How could a mutation or change in a DNA sequence impact the overall function of a cell?
Answer:
DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful.
Explanation:
What eye color would the mammal have if they were heterozygous for eye color?
Answer:
I think it would most likely be brown eyed
Explanation:
because I put it in a punnett square and brown eyes overpowered the blue eyed trait.
Which plant chemical hormone influences increased growth?
a. Auxin
b. Ethylene
Answer:
Auxin
Hope This Helps :))
Explanation:
A i hope this helps u men:)
Explain why the shape of a leaf make a good tool for photosynthesis
Answer:Leaves are ideal for photosynthesis because they are usually broad and flat, giving plenty of surface area for light to be absorbed. They are also thin, which means diffusion of gases such as carbon dioxide can happen quickly. Leaves cannot perform photosynthesis without chlorophyll.
Explanation:
tube 1 contains water only. tube 2 contains a live snail. tube 3 contains a live green water plant. tube 4 contains both a live green water plant and a live snail. what compound that directly provides energy in living cells is being produced in every tube where cellular respiration is occurring?
Answer:
Explanation: Tube 1 doesn't contain an organism so it can't be that one. Both a snail and a plant are considered an organism, and cellular respiration occurs in almost any organism's cells
Which of the following choices is not a type of physical weathering?
A)oxidation
B)heating and cooling of rocks
C)ice formation
D)burrowing animals
Answer:
A. Oxidation
Explanation:
Oxidation is a type of chemical weathering, not physical.
What is the difference between a subscript and a coefficient?
Science
Answer:
Explanation:
Subscripts are numbers that come after a symbol and below. Subscripts tell you the number of atoms of that element. If an element does not have a subscript, then it is understood that the subscript is 1.
its science plzzzzzzzzzzzz
If the DNA sequence is AAG TCG. What is the RNA complimentary sequence?
(1 Point)
O a. UUC AGC
b. TTG AGC
ACUUG AGC
Answer:
Complementary RNA (cRNA) is a copy of a strand of RNA that will bind to the appropriate region of the original molecule. If the original RNA stand had a base sequence of AUU, for example, the sequence of the cRNA strand would be UAA.
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have a wonderful day!
13. Which organelle is the site for the cellular process of photosynthesis?
a. Nucleus
b. Mitochondria
c. Chloroplast
d. Cytoplasm
Answer:
C
Explanation:
The Chloroplast is part of the photosynthesis.
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What role does O2 play in aerobic cellular respiration?
A) it combines with carbon dioxide to form ATP
B)it combines with acetyl-CoA at the start of the Krebs cycle
C)it is an important part of the electron transport system
WHO and WHEN proposed the Model of the Atom we believe in today?
Answer:
Atoms are so small that it is difficult to believe that all matter is made from atoms—but it is. The concept that atoms play a fundamental role in chemistry is formalized by the modern atomic theory, first stated by John Dalton, an English scientist, in 1808.
Explanation:
Which law or principle does the diagram represent?
Answer:
segregation is a law of principal that represents the diagram
BRAINLIST
Could you have identified any of the minerals after having described only a few, rather than all, of the properties you tested? If so, give an example.
Answer:
Unfortunately, you can rarely identify a mineral only by its color. Sometimes, different minerals are the same color. For example, you might find a mineral that is a gold color, and so think it is gold. But it might actually be pyrite, or “fool's gold,” which is made of iron and sulfide.
Explanation:
Part A: Explain how Enzyme A acts as a catalyst in the reaction Be sure to include energy and time in your response.
Part B: Conditions around an enzyme change and affect the shape of the enzyme’s active site. Predict how this would affect the enzyme’s ability to catalyze (speed-up) the reaction.
Answer:
A) Enzymes and chemical catalysts both affect the rate but not the equilibrium constant of a chemical reaction. Reactions proceed downhill energetically, in accord with the Second Law of Thermodynamics. Catalysts merely reduce the time that a thermodynamically favored reaction requires to reach equilibrium. Remember that the Second Law of Thermodynamics tells whether a reaction can occur but not how fast it occurs.
During the nitrogen cycle, plants take in nitrogen compounds through their .
Answer:
Roots
Explanation:
ive taken the test
Answer:
roots
Explanation:
If a hemophiliac man marries a woman who is not a carrier, is there a chance that any child will have the disease ?
Answer:
Almost all people with hemophilia are male, however, women can be carriers of the disease. and yes there's a chance that a child will get a disease from a woman.
Explanation:
What are the main differences in asexual/sexual reproduction? ( explain )
You have to actually have sex in order to reproduce(sexual reproduction) and for asexual reproduction sex is not needed
Answer: Sexual Reproduction can have Genetic Variation, while asexual reproduction will be identical from it's parent.
Explanation:
Can the plant do cellular respiration?
Answer:
yes
Explanation:
plant cells perform cellular respiration to make energy
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Answer:
yes
Explanation:
Which of the following best describes a way in which cellular response might be affected if scaffolding proteins were not present in a cell's signal transduction pathway?
Cell signaling specificity would be absent, resulting in similar responses from multiple signals.
Inactivation mechanisms would be inhibited, causing an inability to terminate the signal.
Phosphorylation cascades would not be activated, decreasing signal transduction efficiency.
Signaling molecules would not bind to receptor proteins, preventing G protein activation.
Answer:
c. Phosphorylation cascades would not be activated, decreasing signal transduction efficiency.
Explanation:
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Which level of organization includes all the other levels of organization?
Answer: The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
Many plants can grow in the littoral zone of a lake because
a. sunlight reaches its bottom.
b. there are no algae.
C. there are no animals.
d. there is both salt water and fresh water.
Answer:
A
Explanation:
The littoral zone is the near shore area where sunlight penetrates all the way to the sediment and allows aquatic plants to grow
Erik remembered that his
science teacher had told him that an explosion in space could not really be heard. Why
is this so?
Answer:
Because space is a vacuum, gases released into space expand very quickly, and as they expand their density decreases. So say you were in a spaceship in the middle of a big space battle and a nearby ship exploded. The exploding ship would release gases and technically sound could travel along with them
Explanation:
2. Identify one simple machine used at your home and explain how it makes your work easier
Answer:
My washer.
Explanation:
It saves me time because need to spend hours with a washing board.
Answer:
cool pool bro go go power rangers
Evaluate StartFraction 8 (6 + 5) over 2 squared EndFraction + 6(2).
Answer:
For anyone who needs a real answer the answer is B:34
Explanation:
Answer:
B=34
Explanation:
Which statement best describes enzymes?
1.
Every enzyme controls many different reactions.
2.
The rate of activity of an enzyme might change as pH changes.
3.
Temperature changes do not affect enzymes.
4.
Enzymes are produced from the building blocks of carbohydrates.
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Answer: The rate of an enzyme might change as pH changes
Explanation:
Which part of a flower produces pollen?
a. Ovary
b. Seed
C. Stigma
d. Anther
Answer:
D. Anther
It is crucial in the reproduction of flowering plants, as it produces the male gametophyte, known as pollen.
Which is the best definition of activation energy?
the energy required to end a chemical reaction
the energy required to bind a substrate to an active site
the energy required to form or break the bonds of reactant molecules
the energy required to re-form bonds in product molecules
Answer:
the energy required to form or break the bonds of reactant molecules
Explanation:
Activation energy is defined as the force needed to bind a substrate to an active site. So, the correct option is B.
What is Activation energy?The bare minimum of energy required for compounds to undergo a chemical reaction is known as the activation energy. In terms of joules per mole, kilojoules per mole, or kilocalories per mole, a reaction's activation energy is quantified. Activation energy is defined as the force needed to bind a substrate to an active site.
The difference in energy content among atoms or molecules inside an activated or transition-state configuration compared to atoms and molecules in their original configuration is known as the activation energy in transition-state theory.
Therefore, the correct option is B.
Learn more about Activation energy, here:
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Lyme disease is spread by ticks that attach to an animal to feed. Which describes the role of the tick?
Lyme disease is spread by ticks that attach to an animal to feed, and ticks play a critical role in the transmission of Lyme disease, as ticks are external parasites that feed on the blood of animals, including humans, and can transmit infectious diseases as they feed; this is option C.
What is a tick?When an infected tick attaches itself to an animal, it can transmit the bacterium responsible for Lyme disease, which is called Borrelia burgdorferi. The bacterium is typically present in the tick's saliva, and it can be transmitted to the animal as the tick feeds on its blood. Once the bacterium enters the animal's bloodstream, it can spread throughout the body and cause a range of symptoms, including fever, headache, fatigue, and a characteristic bullseye rash. Ticks play a critical role in the transmission of Lyme disease because they serve as both a vector and a reservoir for the bacterium.
Hence, ticks play a critical role in the transmission of Lyme disease, as ticks are external parasites that feed on the blood of animals, including humans, and can transmit infectious diseases as they feed; this is option C.
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complete question is below
Lyme disease is spread by ticks that attach to an animal to feed. Which describes the role of the tick?
A)SKIN
B)ABDOMEN
C)ticks are external parasites that feed on the blood of animals, including humans, and can transmit infectious diseases as they feed
To test the hypothesis that mussels are osmoconformers, researchers exposed mussels to water of varying osmolarities and then drew hemolymph samples from the mussels. The results are presented below. Is the researchers' hypothesis supported by the data? Explain.
The question is incomplete, I included an attachment that completes the question as well as show the options to be chosen from.
Answer: YES, SUPPORTED
Explanation: When we talk of Osmoconformers, we are talking of the organisms that live in the marine habitat.
These Osmoconformers have the tendency of maintaining their internal fluid isotonic that is isotonic to their external environment in church they live. They have an osmotic pressure that is equal to the osmotic pressure of their surrounding environment.
In the table provided in the attachment section,it clearly stated as we can see the increase in osmolarity of water,the haemolymph osmolarity increase in order to maintain isotonic realtion so that,there will be no much exosmosis (osmosis).
