Which structural component is found in DNA but not in RNA? ribose
deoxyribose
phosphate group
nitrogenous base

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae