(Q).
Q: Which gas moves from the blood in the capillaries into the air? Choices: - nitrogen - carbon monoxide - oxygen - carbon dioxide A:
(A).
carbon dioxide

(Q).
Q: In plants, pigment molecules absorb only visible light for photosynthesis. the visible light seen by humans as white light actually exists in a what? Choices: - vacuum - transparency - invisible spectrum - rainbow of colors A:
(A).
rainbow of colors

(Q).
Q: Fish and other aquatic organisms use gills to capture dissolved what? Choices: - food - sulfur - nitrogen - oxygen A:
(A).
oxygen