When the continents are at the Earths poles, they receive less sunlight.
Calcite is the most common rock
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
Answer:
Biology is the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution. It can also be described as
Explanation: the physiology, behavior, and other qualities of a particular organism or class of organisms.
<u>What else do you need to know? You weren't very specific...</u>
