Ocean currents can moderate climate by distributing a. heat from the poles upward toward the equator. b. heat from the equator upward toward the poles. c. heat from the poles back down towards the equator. d. cooler water from the equator upward toward the poles.

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