Answer:
The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food. The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.
Explanation:
<span>Electron transport chainElectron Transport Chain take place in the mitochondria. It is a collection of NADH which floats over the inner-membrane and enters the ETC at complex I, and the FADH2 enters the chain at complex II, these are known as electron carriers. The main function of the electron transport chain is to build up excess protons in the intermembrane space so that there will be a concentration gradient compared to the matrix of the mitochondria.<span>
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"Its shape determines the neurotransmitters that can reach its active center where activation energy is lowered" definitely best <span>explains why acetylcholinesterase cannot be used to catalyze the breakdown of other neurotransmitters, like norepinephrine. You were right. Good job. :)</span>
<span>As the human population grows, our natural resource requirements
increases. The answer is letter A. One, the source of food is important for survival.
More humans needed the right nutrition to improve bodily functions. And therefore,
more lands are to be cultivated for agricultural production to suffice the needs
of the society. Two, humans need extra habitable
area to live. It does not go in cycles because
the ecosystem is not balanced. Population explosion is the main cause why these
natural resources slowly decreases and at the same time increases their demand.</span>
