It is unsafe because it could give the baby defects.
The answer is a. accessible population because an accessible population is the portion of the target population to which the researcher has reasonable access.
An adaptation is a trait that "evolved" for a particular condition that allows the animal to survive. Something is adaptive if it is a useful trait but not necessarily one that occurred in response to a particular selection pressure. Basically a trait is an adaptation if it is the product of selection, and adaptive if it is beneficial in the present time.
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D. A change in the amount of polar ice will alter how ocean currents move
You need to know the areas region and its landform I guess not sure though
