Biology, 20.02.2021 02:20 Happygirl5715
4. As the Earth warms, increased evaporation produces more civuus,
increase albedo, reflecting more light away from the Earth, temperature falls,
rates of evaporation fall.
Is this a positive or negative feedback mechanism
Explain why
Answers: 3
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Which of the following human activities resulted in the growth of the north american deer population?
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Biology, 22.06.2019 12:00
Aprocedure done under controlled conditions to test a hypothesis is an inquiry.
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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).
Answers: 2
4. As the Earth warms, increased evaporation produces more civuus,
increase albedo, reflecting more...
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