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Gennadij [26K]
3 years ago
14

How do the highlighted valve cusps function during a ventricular contraction?

Biology
1 answer:
Valentin [98]3 years ago
7 0

Answer:

2. They are held closed by the chordae tendineae to prevent blood from flowing back into the right atrium.

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In the early 1900s a scientist hypothesized a link between DNA and the production of proteins in the cytoplasm. However, the fac
Vladimir [108]
Let us go over the definitions and the functions of each term:
a) Gene is a bit vague but in general it means a part of DNA that encodes one protein. Genes are the building blocks of our genomes but not the answer to this question.
b)mRNA. This is correct. The name itself means messengerRNA and its role is to copy the genetic information in the nucleus and bring it outside to be translated into protein.
c) ATP is an important molecule in our metabolism; energy is stored in this molecule and then used. It has no relationship to the mechanisms concerning DNA.
d) Thymine is one of the 4 nucleotide bases that are found in DNA, the other three being guanine, cytosine and adenine. They are essential components of a nucleotide (building blocks of DNA and RNA) but again, they do not transfer information out of the nucleus.
4 0
3 years ago
The planet with the longest period of revolution based on Earth time is ____???_____
Otrada [13]
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3 years ago
If a cell contains 95% water and is put into a beaker with 100% water, what will happen
Kisachek [45]

Answer: The quantity of water in the beaker will reduce. The cell will increase size.

Explanation: There is difference in water concentration between the cell and the beaker, therefore water will move from the beaker into the cell causing the cell to expand and the quantity of water in the beaker to decrease. There will be movement of water molecules from an area of high water concentration (beaker) to an area of low water concentration (the cell) through a selectively permeable cell membrane. The aim of this is to create an equilibrium between the water concentration in the cell and that in the beaker.

4 0
3 years ago
Pls can someone help me do it
katovenus [111]
I believe the answer is B, “Monkeys and humans are most closely related because they have the least differences”
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3 years ago
Do we live in the Cenozoic era?
lys-0071 [83]
We live<span> in the Holocene.
Hope this helped :)</span>
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2 years ago
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