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BaLLatris [955]
3 years ago
10

Mutations are the source of all new genetic material in a species. a. True b. False

Biology
1 answer:
snow_tiger [21]3 years ago
8 0
This is true, however recombinations can also cause new alleles
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Why are contractile vacuoles important to unicellular organisms like paramecia
katrin [286]

A contractile vacuole works just the same as the name suggests, in that it expands and contracts. The point of the contractile vacuole is to pump water out of the cell through a process called osmoregulation, the regulation of osmotic pressure. It occurs in freshwater protists, but mainly in the kingdom Protista as a whole.

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How are segmented worms and round worms alike
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Both have same structure. Eat the same, move the same.
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domain- kingdon- phylum- class- order
8 0
3 years ago
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Which of the following is UNLIKELY to affect bone remodeling?
S_A_V [24]

Glucagon

This is a hormone that deals with blood sugar homeostasis. When blood sugar levels are low, glucagon is produced to convert the fats in the reserve back to glucose until normal levels are achieved.

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Stress on a bone also causes increased mineralization to strengthen the bone against this stress. This is why astronauts when they go to space, due to less stress from low gravity, bone loses its mass. When they return back to earth, the bone readjusts to the increased stress from higher gravity by increased mineralization.

The hormone responsible for bone homeostasis is parathyroid hormone.

Learn More:

To learn more about bones check out; brainly.com/question/4128260

#LearnWithBrainly

3 0
3 years ago
Which of the following may not have been possible without the presence of ozone in the atmosphere?
Basile [38]

Answer: Option A) Oxygen may not have been able to accumulate in the atmosphere

Explanation:

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5 0
3 years ago
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