El Niño, a periodic warming of ocean Surface waters, occurs in which of the following regions

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 ?