Which of the following explains how cells become different from each other?

a. all cells have different dna and thus are different.
b. all cells have the same dna, but turns parts of it on and off.
c. all cells have different dna and turn parts of it on and off.
d. all cells have the same dna and are thus different.

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

Procedure in pregnancy to have access to fetus. what do you call this procedure?