<span>Humans did not evolve from apes,
gorillas or chimps. We are all modern species that have followed
different evolutionary paths, though humans share a common ancestor with
some primates, such as the African ape. The timeline of human evolution is long and controversial, with significant gaps.</span>
Answer:
lowering the activation energy needed for the reaction to start
Answer:
A.it pumps hydrogen ions inside the cell
Explanation:
Principally, the main role of electron transport chain is to maintain the electrochemical gradient of hydrogen ions (H+) inside the mitochondrial matrix. This is the last step in aerobic cellular respiration and performs a series of redox reactions. Overall, it allows accumulation of H+ inside the mitchondrial matrix. This increased gradient or accumulation of hydrogen ions (H+) is essential because H+ would accept the electrons producing during the reactions. Without this, the flow of electron will be stopped because of high gradient, and production of ATP will not happen as well.
Indeed ETC helps in production of ATP but that is not the main function of electron transport chain rather it is a function of mitochondria.
Answer: DECOMPOSERS
Explanation;
These are heterotrophs that obtain their energy and necessary metabolites from organic substrates. By breaking down dead organic matter Examples ( bacteria and fungi)
They carry out extracellular digestion by secreting digestive enzymes on the organic matter and absorbs the nutrient directly without ingesting it. With this feeding process they are different from detritivore which must ingest and digest the dead matter to obtain the necessary nutrients.(examples-earthworms, woodlice)
