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Fed [463]
3 years ago
9

Explain the evolution of heart in vertebrates

Biology
1 answer:
Vera_Pavlovna [14]3 years ago
4 0

Answer:

The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport. pisces have a dual chambered heartwhile reptiles and amphibians are having a three chambered finally aves and mammals have four chambered hearts.

Explanation:

please mark as brilliant answer

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How does the amount of milk you drink affect the strentgh of your bones? Give me a hypothesis
alisha [4.7K]

Answer:

Explanation:

Researchers have found themselves siding with the null hypothesis in this debate. Although there seems to be a lot of data strongly debunking the fact that milk helps kids grow and develop strong bones, that doesn’t mean all kids should stop drinking milk. There are many things that could have gone wrong in these studies and third variables could be effecting the data. The results from these studies could also just be due to a false positive. We cant know for sure but more studies should definitely be done before drawing conclusions. In the meantime don’t stop drinking milk because of these results. Although is may not help a child grow or develop strong bones, you still need your daily intake of calcium to be healthy. On top of that milk has a lot of other benefits, milk is a good source of potassium and is also very good for your teeth.

5 0
3 years ago
Read 2 more answers
The anticodon loop of the first trna that will complement this mrna is
Volgvan

The anticodon loop of the first trna that will complement this mrna is 3' GGC 5'

<u>Explanation:</u>

Part of the mRNA molecule is sequenced by the ribosome: 5 'CCG-ACG 3' (mRNA). Charged RNA molecules are available with anti-codons shown in directions 3'-5'. Two of them can correctly align the mRNA to form a dipeptide.

One end of the tRNA includes an anticodon loop that pairs with a mRNA that identifies a particular amino acid. The another end of tRNA has the amino acid attached via an ester linkage to the 3 ' OH group. It is often said that tRNA is filled with connected amino acid.

5 0
4 years ago
What is the most efficient way in which oxygen is transported in blood? select one:
marta [7]
C. Combine with hemoglobin to form oxyhemoglobin
4 0
3 years ago
Please Help!!!!
lesya692 [45]
I will go with 4th one.....they involve advance biotechnology.....so there is a separate subject !!!
5 0
3 years ago
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Describe the size and scale of an atom. Explain the relative size of the nucleus in relation to the size of the entire atom.
arlik [135]

The size of the nucleus of an atom is about 10 raise to power 15 meter, which basically proposes that it is about 10 raise to power -5 or 1/100,000 we can say of the size of the entire atom. A good comparison of the nucleus to the atom is just like a pea in the midst of a track. The volume of the atom is 2 x 1013 times larger than its nucleus.

7 0
4 years ago
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