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VMariaS [17]
3 years ago
12

This model shows a human embryo. What can you determine about its development from the model?

Biology
1 answer:
sasho [114]3 years ago
5 0

Answer:

It has a postanal tail.

It has pharyngeal arches.

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15. When there is light, plants do which of the following biological<br> processes?<br> *
zhuklara [117]

Answer: Plants do both photosynthesis and cellular respiration.

Explanation:

All cells do cellular respiration even without light.

Honestly, photosynthesis alone would be right since the teacher didnt  state the questions correctly. But you should choose both cause in the light it does both.

6 0
3 years ago
In 1958, Meselson and Stahl conducted an experiment to determine which of the three proposed methods of DNA replication was corr
Katen [24]
<h2>Meselson and Stahl conducted an experiment to determine the correct proposed methods of DNA replication was semi-conservative. the three proposed models for DNA replication are semi-conservative, conservative, and dispersive.</h2>

Explanation:

In Semi-conservative replication model, the two strands of DNA uncoil from each other. It perform with the original strand and a new strand.

In Conservative replication model, DNA replication didn't open at all, but the parent strands remains undamaged by creating a new and separate  molecule that consists of two new strands.

In Dispersive replication model, DNA replication results in two DNA molecules that consists of both parental and daughter DNA.

He demonstrated that semi-conservative DNA replication is an universal mechanism allocated by all organisms on Earth.

4 0
3 years ago
A red blood cell will shrink in size when placed in a more concentrated salt solution because of the passive process called
Leto [7]
This process is called osmosis whereby water exits the cell through its selectively permeable membrane and into the salt solution to dilute and balance the pressure caused by the concentrated salt solution.
6 0
3 years ago
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Draw a 3d DNA for me plz
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I can't draw very well. but, essentially the shape of DNA is a double helix and A pairs with T and T pairs with A. C pairs with G and G pairs with C. No matter what in DNA. What one side has the other side has. The other will always have the match to it on the other side

A= adenine
T=thymine
C=Cytosine
G=guanine

6 0
3 years ago
Perspiration leaves the body through the _____.
nata0808 [166]
Sweat glands. :)
Perspiration leaves the body through the sweat glands.
8 0
3 years ago
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