Small, haine parts called villi absorb
from the food.
air
nutrients
waste

What type of muscle makes up your heart?

The maximum blood pressure in the upper arm of a healthy person is about 120 mmhg. if a vertical tube open to the atmosphere is connected to the vein in the arm of the person, determine how high the blood will rise in the tube. take the density of the blood to be 1040 kg/m3.

True or false: a person who practices delayed gratification is taking a step towards his or her health.