The sticking together of water molecules
by hydrogen bonds is
stronger than the
bonding between
water and air,
causing the water
molecules to form an
ordered membrane
on the water's
surface.

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