What did darwin accomplish during his voyage on the hms beagle? he proposed the theory of artificial selection. he proposed the theory of evolution. he proposed the theory of genetic mutations. he proposed the theory of gene recombination.

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

The fauces connects which of th following structures to the oropharynx

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food