Answer:
ATP, Mitochondria, Cellular respiration.
Explanation:
The Krebs cycle of, cellular respiration, in the mitochondria results to the an accumulation of protons in the inter-membrane space of the organelle. This proton motive force is harnessed in the electron transport chain by ATP synthase to generate ATPs.
Seeing that our species is constantly evolving, maybe it is starting to get more uncomfortable to walk on all fours.
A very steeply sloped seafloor
Since it is the hearts job to pump blood throughout the body of the organism, the circulatory system would fail and the entire organism would suffer if the heart cells stopped working properly.
