After death, muscle fibers run out of atp and calcium begins to leak from the sarcoplasmic reticulum into the sarcoplasm. this results in a condition known asa) rigor mortis. b) tetany. c) treppe. d) oxygen debt. e) depolarization.

A) rigor mortis

Explanation:

Rigor mortis is the condition of the partial contraction of muscles when the muscles cannot contract or stretch. It occurs after death as the ATP supply to muscle cells stops. The leaky cellular membranes results in leakage of calcium ions from the sarcoplasmic reticulum into the sarcoplasm. The presence of calcium in sarcoplasm triggers the binding of myosin heads to actin. The myosin heads remain attached to actin and muscles are prevented to be relaxed.

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b. lithosphere, asthenosphere, mesosphere   is the answer most likely