I believe the correct answer from the choices listed above is option 1. ATP and calcium are the ones who participate in muscle movement. <span>Contraction is initiated by the release of calcium ions (Ca2+) upon the depolarization of the membrane, which is induced by nerve impulses.</span>
Ships can transit between the Atlantic and Pacific Oceans using the Panama Canal.
Global life expectancy is the number of years people live on average in the entire world i believe
"B" is your answer. Fossil Fuels take millions of years to decay.
