Lamarck's idea of "use and disuse" proposed that a. traits are passed down from parent to offspring. b. the continents were slowly moving. c. in animals, traits that are used often will grow and change shape. d. the continents were moving quickly.

What re the two main phrases of the cell cycle.

What is thought to have caused the mass extinction at the end of the cretaceous period?

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?