Somebody help me please

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

Were you able to observe the nucleolus in any of the cells if so which ones

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