White blood cells:
the blood to make plasma
resist germs from multiplying in the blood
carry wastes from the cells
cause blood to clot

At what age does trust usually begin to develop? a. 25 weeks b. 20 weeks c. 15 weeks d. 10 weeks

Increased use of cocaine can reduce the period of stimulation. true or false

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny.i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)