Agroup of organisms that look alike and can reproduce among themselves is a

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b. hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.

Animal cells have which of the following characteristics? select all that apply.

How do scientists hope to use the human genome project as an early warning system