Genetic variety is one factor required for a population to adapt to the environment. Which is true? NO LINK ANSWERS!! pic attached.

Environmental impacts on evolution : mastery test

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.

Polar zones are cold and tend to be dry because of a pressure system of cold. low high