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sleet_krkn [62]
3 years ago
11

How do these effects on the gene pools lead to speciation

Biology
1 answer:
nataly862011 [7]3 years ago
7 0

Answer:

Over time, genetic changes add up in each population.

These changes may prevent individuals from each population from being able to mate successfully with each other. If this happens, the two populations are considered to be distinct species.

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Population growth is:
Ierofanga [76]

Answer:

B

Explanation:

We have learned of a major population crisis in China. Whereas The united states of America has the slowest population growth.

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Northern flickers are woodpeckers of the eastern United States. Males, but not females, have black feathers that resemble a mous
jek_recluse [69]

Answer:

This suggests that the moustache is a releaser for aggression.

Explanation:

<em>Fixed action patterns</em> are instinctive programmed responses in different species that are triggered by a specific external sensory stimulus. These stimuli are called sign stimuli or releaser. When the sign occurs, the animal starts a sequence of acts in response to the stimulus and continuous until the series of actions is completed.

The black feathers resembling a mustache in a <em>Northern flickers</em> male are an external sensory stimulus. This trait that can provoke another male to respond aggressively, as a f<em>ixed action pattern</em>.  

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7 0
3 years ago
Which of these is a part of cryosphere
Strike441 [17]
The cryosphere is the frozen water part of the Earth system. Beaufort Sea, north of Alaska. One part of the cryosphere is ice that is found in water. This includes frozen parts of the ocean, such as waters surrounding Antarctica and the Arctic.
8 0
3 years ago
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When you examine fluid that you have drawn from a blood vessel in someone's arm, you find that it is relatively high in carbon d
ziro4ka [17]

Answer:

The given blank can be filled with a venule.

Explanation:

A small blood vessel in the microcirculation, which connects the capillary beds to the veins is known as the venules. Various venules combine to form a vein. The walls of a venule are formed of three layers, that is, the inner endothelium formed of squamous endothelial cells, a middle layer of elastic and muscle tissue, and an external layer formed of fibrous connective tissue.  

The size of a venule ranges from 8 to 100 micrometers in diameter and are produced when capillaries come in close association. A venule refers to a small blood vessel that permits the deoxygenated blood high in carbon dioxide and waste products to return from capillary beds to the bigger blood vessels known as veins.  

4 0
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Between gamete and Zygote which one has sex cells
Nadusha1986 [10]

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5 0
2 years ago
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