Potassium-42 has a half-life of 12.4 hours. How much of a 745 g sample will be left after 74.4 hours? (A: 11.6 g)

Cis correct i think

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.

The answer is c water is the solvent and salt is the solvent

The 3 steps are vasoconstriction, temporary blockage of a platelet plug, formation of a fibrin clot better known as coagulation.