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Natural selection favors
A. organisms that have the longest lives.
B. organisms that survive long enough to reproduce.
C. organisms that conserve energy by not reproducing.
D. only the strongest and fastest organisms.

Which osmotic and ionic strategies must marine teleost fishes employ?

Which of the following statements is true of cells

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.