What role does cellular respiration play in the carbon cycle? A. It removes CO2 from the atmosphere during glycolysis.
B. It removes CO2 from the atmosphere during the citric acid cycle.
C. It releases CO2 to the atmosphere during acetyl CoA formation.
D. It releases CO2 to the atmosphere during electron transport.

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