Which of the following statements is NOT important to Darwin's theory of natural selection?

a) All species have the ability to produce more offspring than can live and reproduce.
b) Variation is found in all natural populations.
c) Offspring tend to inherit characteristics acquired by their parents during their lifetimes.
d) Some variation found in natural populations is heritable.
e) None of the above choices is correct; all are important to his theory.

How had the study of mitosis affected scientists knowledge of cancer

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.

Coral have a symbiotic relationship with what in order to eat?