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an alkaline watery fluid containing digestive enzymes, which is secreted into the mouth by salivary glands.
cone-shaped mammalian teeth used to grip and tear off pieces of meat.
a molecule that stores large amounts of energy that can be used for metabolic activity.
when a plant cell loses water and the cell membrane pulls away from cell wall.
simple inorganic chemical substances (mineral salts) that are needed in relatively large amounts...
movement of the Earth's continents as the Earth's tectonic plates shift.