Which rock is an example of an organic sedimentary rock? O iron ore
O rock salt
O limestone
O sandstone

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change.

Aprocedure done under controlled conditions to test a hypothesis is an inquiry.

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