When a rabbit eats a plant, nutrients from the plant become available to the tissues of the
rabbit. During this process, some of the energy
from these nutrients is lost and the energy
becomes heat and unavailable chemical energy.
This energy loss partly explains why the total
energy is greater in
A. predator populations than in scavenger
populations.
B. consumer populations than in producer
populations.
C. producer populations than in consumer
populations.
D. predator populations than in prey populations.

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.