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Komok [63]
2 years ago
8

The layers of Earth's atmosphere are separated by which of the following?

Biology
1 answer:
padilas [110]2 years ago
6 0
Stratosphere is the correct answer
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A student hypothesized that EC growth might be affected by the DNA from circulating erythrocytes. Is this student’s hypothesis r
kykrilka [37]

Answer: The options are not given, here are the options.

A) No the DNA in circulating erythrocytes ins needed to help transport O2 through the capillaries

B) No circulating erythrocytes contain DNA.

C) Yes DNA is responsible for cell division in most cells

D) Yes circulating erythrocytes carry DNA nutrients through the capillaries

The correct option is B.

No circulating erythrocytes contain DNA.

Explanation:

Erythrocytes or red blood cells is a biconcave disc that contain haemoglobin which help to carry oxygenated blood in the body.

Circulating erythrocytes do not contain dna because they lack nuclei and organelles, cannot synthesize any RNA, therefore cannot divide and have limited repair capabilities.

Because they cannot carryout protein synthesis, no virus can evolve and invade the red blood cells.

5 0
3 years ago
In an asexually reproducing organism it is expected that the offspring will be genetically identical to the parent. However, in
JulsSmile [24]

Answer:

Mutation

Explanation:

I believe it is a mutation. A mutation is when the DNA is copied with a small mistake. Ex: AGCC => AGGC

Then, after a mutation, the DNA isn’t exactly identical because of this mistake in the DNA after copied.

I hope this helped! Happy Thanksgiving! GOBBLE GOBBLE!

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2 years ago
Oxygen has an atomic number of 8. The n = 1 energy level has two electrons, and the n = 2 energy level has six electrons. Oxygen
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-2,-1 2-2=4 . hope this helps
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D: All of these

Explanation:

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I’m on that same question
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