Biology, 31.08.2019 12:10 lilgunter12
Which parts of dalton's atomic theory had to be revised? a. atoms are tiny indivisible particles. b. atoms of the same element are identical. c. compounds are molecules made by uniting atoms. d. atoms of different elements can combine with one another in simple ratios.
Answers: 1
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
Biology, 22.06.2019 15:30
What are potential sources of error in marta’s experiment
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Biology, 22.06.2019 17:10
Drag the tiles to the boxes to form correct pairs. match the causes with their effects cause: tectonic plates at transform boundaries experience friction. cause: tectonic plates at transform boundaries experience friction. cause: earth is covered by a crust that runs miles deep.
Answers: 1
Biology, 22.06.2019 22:30
The development of this new blg-free, hypoallergenic milk is based on a science that came to the forefront 150 years ago. what scientist's work provided the basis for such feats in biotechnology?
Answers: 1
Which parts of dalton's atomic theory had to be revised? a. atoms are tiny indivisible particles. b...
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