Description and the appearance of methane lake in liquid state

Match each symbol with its description.

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

Drag the tiles to the correct boxes to complete the pairs. match wach fossil with the layer where it’ll be present based on these condition