Drag each tile to the correct location on the image. Not all tiles will be used. Label the diagram depicting a subduction zone. buoyant trench dense ridge ↑ crust crust direction of plate movement direction of plate movement

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

i think the answer is a.keratin is the pigment responsible for skin color.

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.