Darwin concluded that organisms on the galápagos islands a. had changed over time. b. had remained the same. c. were the result of selective breeding. d. had no variations.

Which of the following is the function of the nociceptors? a. detecting odors in the nose b. detecting painful stimuli c. detecting central body temperature d. detecting touch and pressure

Which factor affects the force of gravity between objects? check all that apply. direction distance mass shape time

What methods do scientists use to predict volcanic eruptions? select all that apply