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hammer [34]
3 years ago
15

Which mechanism decreases the number of genetic variations in a population? A. founder's effect B. mutation C. gene flow

Biology
1 answer:
Georgia [21]3 years ago
3 0
<span>The correct option is A. Founder's effect is the reduced genetic variability that occur as a result of population production from a small number of colonizing parents. The founder's effects is one of the ways by which nature can randomly produce new species from existing population.</span>
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A student notices that her guppies reproduce most when her fish tank water is slightly alkaline. They stop reproducing if the wa
Gnom [1K]

Answer:

The correct answer is Zones of tolerance

Explanation:

All living organisms such as fish,plants and animals  need water to survive and also the require certain pH level of water in order to be healthy.Its a acid and base balance reaction.Strong acids dissolve into water and its changes water's pH.if water's pH level drops it becomes acidic suppose a fish waste ammonia releases and dissolves in water to form harmless ammonia ions,carbon dioxide ions and hydrogen ions even some limestone also rises pH level and water becomes more basic.To make the tank water alkaline, add some corals and aerate the tank water by fixing an air pump so that excess of carbon dioxide eliminate out and water pH level comes to neutral this is the reason water becomes slightly alkaline and the fishes are able to reproduce.

3 0
3 years ago
What is advantage is conferred to algae and plants that possess sporopollenin?
crimeas [40]
The advantage that is conferred to algae and plants that have sporopollenin is that they have reproductive cells that are more resistant to desiccation. Remember that a sporopollenin is a polymer that is inert and makes up the outer layer of pollen grains and spores. Sporopollenin<span> is also found in the cell walls of several taxa of green </span>alga<span>, including Phycopeltis </span>
6 0
3 years ago
Which structure is not found in both males and females?
icang [17]

Answer:

Vestibular gland

I hope this helps

3 0
3 years ago
What might it mean if a pulse were normal (grade 2/4) on the right limb, and absent (grade 0/4) on the left?
Aloiza [94]
Grant on 0/4 on the left means that there is no pulse on the left.

This could indicate blood clot that hinder the blood flow in your veins. You need to go to the doctor immediately because you're exposed to a high risk of a heart attack.
4 0
3 years ago
What is the sequence of the mRNA that would be written during transcription of this piece of DNA?
lesya692 [45]

Answer:

AUCUAG is the correct combination

Explanation:

replace every letter with its xorresponding base pair of mRNA where A=U, T=A , C=G

3 0
3 years ago
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