Biology, 09.09.2019 03:20, markmeinberg
Name and describe the three mechanisms by which heat is transferred through earth’s system. how is each mechanism different from the others? provide one example of each heat transfer mechanism.
Answers: 1
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 15:00, sisterskrrt
Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture
Answers: 1
Biology, 22.06.2019 18:00, QueenFlowerCrown98
Define adaptation. why do organisms adapt? give an example.
Answers: 2
Name and describe the three mechanisms by which heat is transferred through earth’s system. how is e...
Mathematics, 17.03.2020 23:06