Explain why the walls of the lower chambers of the heart are thicker and more muscular than the walls of the upper chambers.

The purity of ecstasy is always in question, why? (short answer)

When do people generally experience rapid growth for a second time? a. between the ages of 3 and 9 b. between the ages of 9 and 12 c. between the ages of 13 and 20 d. between the ages of 25 and 29 which action occurs in the third stage of cell division? a. the nuclear material of cell is copied exactly. b. the nuclear membrane disappears. c. the cell forms two nuclei d. the nuclear material separates, with half moving to either side of the cell.

When making a bed you are using good body mechanics when you