A change a population's genetic makeup through successive generations is known as

A. emigration.
B. mutation.
C. natural selection.
D. biological evolution.
E. genetic drift.


Answer: D

Environmental & Atmospheric Sciences

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Nationalists believe that the nation to which they belong has a right to determine its own affairs

Indicate whether this statement is true or false

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A rate of natural increase of 1.0 percent results in a doubling time of how many years?

A. 35 B. 140 C. 24 D. 70

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Which of the following is a weakness of the Paris Agreement?

A. Most countries are not making commitments. B. For countries to meet their commitments they will need to spend huge amounts of money to improve energy efficiency. C. The goal of keeping global temperature to no more than 2°C will cause many countries to withdraw from the agreement. D. All of these are correct statements.

Environmental & Atmospheric Sciences

Studies reveal that during colder glacial periods, CO2 levels were lower than during warmer

interglacial periods. a. true b. false

Environmental & Atmospheric Sciences