Aspecies has homologus chromosomes. what does this say about the species?
a. it has pairs of matching chromosomes
b. it has dna that is made up of genes
c. it has allels that control certain traits

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed