Which of the following statements are false? a.) the number of chromosomes is different in different organisims. b.) there are more genes in a cell than there are chromosomes. c.) a single gene can only influence a single trait. d.) the karyotypes for a male human and a female human look different.

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