How do sprouting plants exhibit positive gravitropism? A. The roots turn downward. B. The roots move horizontally. C. The leaves face toward the Sun. D. The stems curl around supports.

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. albino x albino a) 1/4 chinchilla, 3/4, agouti b) 3/4 albino, 1/4 chinchilla c) all albino

How energy move through ecosystem ?