Which of the following would have resulted from the functions of prokaryotes on early earth? earth's oceans grew larger less oxygen gas became present in the atmosphere less carbon became present in earth's soil more oxygen gas became present in the atmosphere

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