Answer:
O True
Explanation:
Ecosystem engineers are able to modify the surrounding environment, either by creating new habitats or modifying/destroying existing ones to adjust them to their needs. These species can significantly alter their environments, having a large impact on the species richness as well as modifying the availability of abiotic factors (e.g., water, space, etc) of a particular area. In certain environments, ecosystem engineers can even act as keystone species. Some examples of ecosystem engineers include, among others, beavers, woodpeckers, corals, etc.
Step- by - step - explaination
Your answer would be photosynthesis because photosynthesis synthesis carbon based energy molecules from chloroplast inside a cell, with the outer membrance.
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The answer is b, decrease the oxygen gas pressure
