Material rising from the mantle reaches the surface at spreading centers.
A. True
B. Fal...
Biology, 18.02.2021 01:00 griffinadrianne946
Material rising from the mantle reaches the surface at spreading centers.
A. True
B. False
Answers: 2
Biology, 22.06.2019 07:00, dlatricewilcoxp0tsdw
Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome
Answers: 2
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
Biology, 22.06.2019 19:00, michael3592
Why does controlling transcription affect prokaryotic gene expression?
Answers: 3
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