Nitrogen is cycled out of the atmosphere due to
a. winds and currents.
b. bacteria and plants.
c. animals performing respiration.
d. plants performing photosynthesis.

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

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary

If a cell is placed into a hypertonic environment,what will happen to it ? a)it will shrink or shrivel b)nothing c)it will burst d) it will expand or enlarge