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Biology, 05.05.2020 07:25 xocamiryn6584
Juan observes a material in the rocks of a hill. Juan hammers off a piece and then examines the pieces with a hand lens. He makes the following notes about what he observes:
• has luster
• cubic crystals
• clear in color
What did he most likely observe through the hand lens?
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Biology, 22.06.2019 13:20, crazymadhatter0
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
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Juan observes a material in the rocks of a hill. Juan hammers off a piece and then examines the piec...
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