Which of the formed elements of blood is primarily involved in clotting?

white blood cells
red blood cells
platelets
plasma

The two main stages of cell division are called

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!

Procedure in pregnancy to have access to fetus. what do you call this procedure?