What process is oxygen necessary for in all living cells? What are the different ways 3 organisms get oxygen: flatworm, fern, human?

clinically, some people often have repeated allergies, eczema and respiratory infections or other parts of the infection, in this case, in addition to some routine tests such as tests for white blood cells, immunoglobulin series, lymphocyte subsets, etc., the five immune immunoglobulin tests are also necessary.

answer; /// i believe the name your looking for is called (plaque)or check good luck

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem