Which of the following will lead to speciation? a)variation in gene pool b)lack of mutations c)absence of natural selection

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

Deserts (especially true deserts) are not easy places for animals to live. animals who live in them often have special features that them survive. which adaptation would be for this group of animals? a) keen eye sight b) short, narrow legs c) tolerate heat d) webbed feet

What has a person lost function of if they're suffering from carpal tunnel syndrome