What happens to most of the nitrogen in a plant when the plant dies?
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A. It goes back into the soil.
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B. It remains in the dead plant.
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C. It moves into the atmosphere.
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D. It is absorbed directly into animals.

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).