Answer:
D) largest mass extinction event in Earth's history
Explanation:
The cambrian era started following the pre-cambrian extinction
<span>Animals and plants have cells that are specialized by the process of differentiation.</span>
The organisms in a pond and the physical factors <span>influencing them best describe "an ecosystem" since this is a self-contained environment will multiple organisms. </span>
Price of photosynthesis will increase as the quantity of collisions between enzymes and substrate will increase. this is the top-quality temperature. The enzymes begin to denature, so the fee of photosynthesis decreases.
Increase in enzyme attention will growth the charge of photosynthetic and respiratory reactions, furnished that there are substrates available to bind to. once all substrate is bound by enzymes, the reactions, the response will no longer increase, since there may be not anything for extra enzymes to bind to.
Enzymes are proteins that catalyze, or affect the fee, of chemical reactions without themselves being altered inside the process. precise enzymes catalyze every mobile reaction. the main position of enzymes at some point of the respiratory reaction is to help in transferring electrons from one molecule to some other.
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