Based on the graph, what conclusion can be made about the changing phases of water? a. Water is altered from a solid to a liquid when heat is added
b Intermolecular forces increase as heat is added to water
c The heat of fusion is associated with the boiling water point of water
d Water can't exist in two states at the same temperature

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

answer; the above statement/question is (false);

the calvin cycle takes place in the stroma of the chloroplast. carbon dioxide enters the stroma of the chloroplast to combine with the five-carbon compound called ribulose1, 5-biphosphate to form two molecules of a three-carbon compound called 3-phosphoglyceric acid. this reaction is catalyzed by an enzyme called ribulose bi-phosphate carboxylase.