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shusha [124]
3 years ago
15

List and describe at least 3 sources of variation.

Biology
1 answer:
dybincka [34]3 years ago
8 0

Answer:

mutation, recombination, and immigration of genes.

Explanation: I think this is it if not please tell me and can I have brailiest

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Phytopharmaceuticals are pharmaceutical compounds that are found in plants. They can be naturally occurring or a result of biote
alexgriva [62]

Answer:

D

Explanation:

6 0
3 years ago
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Breathing heavily after you have finished running a race is your body way of
ehidna [41]

Answer:

Breathing heavily after you have finished running a race is your body way of repaying an oxygen debt.

Explanation:

Any kind of exercise that is performed makes our muscles work harder. As a result, more calories get burned by these muscles. To burn the extra calories, more supply of oxygen is required by the muscles. As you exercise harder, the breathing increases and become heavier to bring more oxygen to the lungs. From the lungs, the oxygen is carried to the muscles which are burning more calories.

You breathe heavily at the end of a race to get enough supply of oxygen.

5 0
3 years ago
Which of the following is true concerning continental crust? a. It does not contain radioactive elements. b. It mostly contains
Phantasy [73]
<span>The mantle is more dense, so it can not B.
 Not even A , because the crust sure does contain naturally occurring radioactive material. Heat  is also not  efficiently transferred to the surface--most ground is cool,
so correct option is none is above that is D 
hope it helps</span>
3 0
3 years ago
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Someone pls help me with this, bcs i really dont know what’s happening, as im new to Biology
love history [14]

Answer:

they can cause a lot of harm in human body

Explanation:

based on research, a virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.

Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganisms.

and lots more all can do a lot of damage to the human body they can even take someone's life.

3 0
3 years ago
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Meiosis 1 begins with a?
Alchen [17]
Prophase 1, where crossing over occurs and DNA is already replicated
6 0
3 years ago
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