What is the purpose of mitosis in an organism's life cycle? a. to produce new, identical body cells b. to make copies of dna c. to produce sex cells such as sperm and egg d. to release energy for use by the cells

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