Which of these is not true of enzymes? a. enzymes speed up reactions in cells. b. enzymes work the same at all temperatures. c. enzymes work only in a relatively narrow ph range. d. enzymes work on specific chemicals?

Which is one example of a phenotypic change that is not genetic

Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.

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