Which layer of the uterus contains a thick lining of blood tissues to nourish a developing fetus?

The layer of the uterus contains a thick lining of blood tissue to nourish a developing fetus is the ENDOMETRIUM.
The endometrium changes according to menstrual cycle, if pregnancy does not occur, the endometrium is broken down and it comes out as blood during menstruation but when pregnancy occur, it develops further and nourished the baby.

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.