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serious [3.7K]
4 years ago
7

Which of the following is a postzygotic isolating barrier?

Biology
1 answer:
Jet001 [13]4 years ago
8 0

Answer: The following is a <u>postzygotic isolating barrier </u>:

  • The hybrid offspring of two species of crocodiles can produce normal gametes but cannot obtain a mate.  

Explanation:

<em><u>Reproductive isolation </u></em>occurs when <em>barriers prevent</em> two populations from interbreeding , <u>keeping their gene pools separate.</u>

We can find the Prezygotic isolation that occurs<u> before fertilization </u>can happen.

And the Postzygotic insolation barriers are the reproductive insulation processes that<u> act after the mating</u>. They are all that concern the viability of the individuals produced.

Prezygotic isolation barriers can be temporal, behavioural, geographic , ecological or mechanical; whereas postzygotic isolation barriers include the inviability, infertility or breakdown of hybrid organisms

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The populations living on a rough, steep mountain would have a higher rate of speciation than this living in a large, open grass
exis [7]

The correct answer is option C, that is, have a wider range of environments.  

It has been known that geographic isolation is a general way for the initiation of the process of speciation, like the rise of mountains, rivers changing course, migration of organisms, continental drift, due to this what was once a steady population gets differentiated into two or more kinds of smaller populations.  

A mountain range, due to distinctions in temperature and precipitation as a result of different altitudes, can lead to a higher rate of speciation. Due to these differences, a single mountain range can exhibit an enormous array of biodiversity and climate zones.


6 0
3 years ago
Help please!!! :( 10 POINTS
matrenka [14]

Answer:

75% i think

Explanation:

because if it is dominant its most likely always gonna be that

6 0
3 years ago
Human Immunodeficiency Virus (HIV) infects cells of the immune system.
nasty-shy [4]

Explanation:

Results in a decline in CD4+T cell numbers below the critical level, and loss of cell-mediated immunity. Therefore the body becomes progressively more susceptible to opportunistic infections and cancer.

8 0
3 years ago
How will agents of weathering such as wind and water most likely affect this landscape
Alika [10]

Answer:

Answer

Explanation:

The wind and water can break down the landscape and affect its physical formation. Water for example can break down rocks and make a ditch from 1 foot deep to 6 feet deep.

4 0
3 years ago
What is global wind and how do winds help humans travel?
jeka57 [31]

Global winds are winds that appear in belts that go all around the world. Like local winds, global winds are driven by unequal heating of the atmosphere. Since global winds blow west to east, it helps humans travel west to east.

<h3>How global winds influence climate?</h3>

Global wind belts and calm regions have an effect on, is that the berg winds blow from the east and die out as they are available close to the equator.

The westerlies blow from the west and move storms across u. s. The easterlies blow from the east and they cause stormy weather to occur once cold air forms this belt meets heat air of the westerlies.

Thus, this could be the answer.

To learn more about Global wind click here:

brainly.com/question/2161782

#SPJ1

7 0
2 years ago
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