Observe: Increase the Sim. speed by two levels. Click Play, and wait for a while. What occurs as time goes by?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen

Cells are adapted to preform specific functions. which of the following terms refers to this capability?