Leukocyte movement from blood to the site of tissue damage or infection involves , leukocyte movement toward the blood vessel wall; , the movement of leukocytes between endothelial cells of the blood vessel; and , the movement within the tissue to the site of injury.

in a word, a scientific question is testable. a testable question is one that asks about objects, organisms or events found in the world around it

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.