Answer:
SA node
Explanation:
The SA node (called the pacemaker of the heart) sends out an electrical impulse. The upper heart chambers (atria) contract. The AV node sends an impulse into the ventricles. The lower heart chambers (ventricles) contract or pump.
They form under a pressure and heat that doesn't destroy the fossils. Igneous and metamorphic rock form from molten rocks thus reaching a temp that destroys the fossils within.
Answer:
Answered below
Explanation:
Whoosh is an inhibitor of the f1fo ATP synthase. ATP synthase is an enzyme that catalyses the synthesis of ATP in the mitochondria through the process of oxidative phosphorylation, by using energy from the transmembrane electrochemical proton gradient along the respiratory chain.
ATP synthase is made up of two main subunits called the F0 and F1. These subunits allow for ATP production through their rotational mechanisms.
Various synthetic and natural inhibitors of ATP synthase have been used to study the structure and mechanism of ATP synthase. These inhibitors cause the decrease in the NAD/NADH ratio. They include; polypeptides, organotin compounds, cationic inhibitors, amino acid modifiers, oligomycin and peptide inhibitors.
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The answer is (B. levothyroxine)
