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Biology, 21.06.2019 16:20
Which element is used in photosynthesis found in atmosphere and fixed by bacteria?
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Biology, 22.06.2019 11:20
Drag each label to the correct location on the chart. match the function to the type of tissue
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Biology, 22.06.2019 12:00
What type of graph presents information about how often certain or traits occur?
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Biology, 22.06.2019 13:20
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
One method used by newborn mammals to generate heat is referred to as nonshivering thermogenesis. th...
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