and is prevented in the absence of , which causes calcium to trigger contraction through a response with regulatory proteins.
and filaments of the fibrils glide into one another as a result of calcium diffusing in the cytoplasm, resulting in the of the complete muscle fiber. The SERCAs pump (Sarcoplasmic/endoplasmic reticulum calcium ATPase) actively pumps ions back into the sarcoplasmic reticulum when the action potential decays.
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If a star is a brilliant blue color, it's really hot and emits a lot of energy. If it's red, it has a cool surface temperature instead. Therefore, the dominant wavelength of a star's light can tell us its surface temperature.
The reason why the animal that has been struck by the arrow
goes limp and quickly suffocates because the acetylcholine receptor sites are
blocked and this was made possible because of the drug curare they use in
poisoning the top of the arrows.
I think the corrective lenses work by modifying the path of the light as it approaches your eye such that between the artificial lens and the lens of your eye- the light focuses on the retina. Myopia is the nearsightedness, it is a condition of the eye where light focuses in front of, instead of on, the retina. Hyperopia is farsightedness; where light focuses behind the Retina.
