Genetic variation is needed for the long-term survival of a species.

True
False

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

a. an idea which cannot be disproven!

explanation:

answer; the male's sperm cells have mitochondria, but because the sperm contributes dna but no cytoplasm, no mitochondria are passed to the egg at ferilization;