The main function of the placenta is to a) direct the blood flow to the pelvis. b) allow the mixing of maternal and fetal blood. c) surround the embryo and protect it from shock. d) allow the fetus to receive nutrients and oxygen.

What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink.b. the chloroplasts would produce more energy.