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Art [367]
3 years ago
7

What causes skeletal muscle relaxation? A) nhibitory interneuron releases GABA onto muscle B) Descending neurons from brain dire

ctly inhibit muscle fibers C) Motor neuron does not fire action potentials E) Inhibitory motor neuron releases acetylcholine onto muscle
Biology
1 answer:
Molodets [167]3 years ago
5 0

Answer:

The correct option is C. Motor neuron does not fire action potentials

Explanation:

During contraction, the motor nerve passes down an action potential. A neuromuscular junction is formed by the motor neuron which stimulates the entry of calcium ions. The calcium ions bind to structures called as troponin which stimulates the binding of the filaments, actin and myosin. The filaments begin to contract by using ATP.

During relaxation, the action potential is stopped. Calcium is taken back into the sarcoplasmic reticulum. As a result, actin and myosin filaments do not link and hence, the contraction is stopped.

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<u>The impact of reef erosion on  the coral reef community:</u>

The reef erosion takes place in the shores, and which the coastal properties are being more exposed to the damaging effect of the waves. They become colonised with the help of varied range of the organisms, that includes algae, corals and large diversity of species of fishes. Artificial reefs functions as the inundated breakwater. Then will dissipate the wave energy, which can further reduce the coral erosion and thus will protect the secured boats.

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How to convert 16in into cm
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sweet [91]
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3 years ago
A- 0.455 g B- 5.50 g C. 4.56 g D. 0.55 g
serious [3.7K]

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Maybe it is 5.50 because not much information is given to calculate it or to find it.

3 0
3 years ago
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