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Korolek [52]
3 years ago
10

A what can be the intermediate stage of speciation?

Biology
1 answer:
mart [117]3 years ago
8 0
Speciation can be difficult to observe in  nature, but the it is hypothesized that the following occurs in a allopatric speciation's intermediate stage:

(1) closely related species are differentiated through geographic variation (2) then there's reduced fertility in one a geographic race of the species (3) and in the geographic race of subspecies that are to become species. 
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g the period of time that begins with contraction of the atria and ends with ventricular relaxation is known as: question 36 opt
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The period of time that begins with the contraction of the atria and ends with ventricular relaxation is known as the Cardiac cycle.

<h3>What is a cardiac cycle?</h3>

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<h3>Cardiac Cycle Physiology</h3>

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Learn more about deoxygenated blood here:-

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Cerebrospinal fluid is formed by filtration of blood in the
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Question
REY [17]

Answer:

It would be heat and pressure

Explanation:

If sedimentary rock becomes buried deep enough within the crust to be subjected to increased temperature and pressure, it may change into metamorphic rock.

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