How is it possible that norepinephrine can cause vasoconstriction in one location but vasodilation in another?

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.

Which statement describes james chadwick’s discovery.

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.