The answer to your question is Answers c and d in my opinion
Answer:
They increase the rate of the reaction.
Explanation:
A is the answer according to my notes
The electron transport chain produces 6 H2O molecules, and 32 ATP
Examples of abiotic factors are water, air, soil, sunlight, and minerals.Biotic factors are living or once-living organisms in the ecosystem.
Biotic describes a living component of an ecosystem; for example organisms, such as plants and animals.
Examples Water, light, wind, soil, humidity, minerals, gases.
<u><em>Hope this helps!</em></u>