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the teeth found at the back of the mammalian jaw. In herbivores they have broad surfaces and cusps for grinding plant material.
a molecule that is converted to adenosine triphosphate (ATP) for energy storage.
single-celled algae that have two flagella and are found mainly in seawater but are also common...
a system of support in soft-bodied animals, which relies on pressure of fluids in the body...