Biotic Factors are any living components that affect other organisms, and since soil is not alive (soil is an abiotic factor) then you can eliminate A., B., and C. D is the answer choice that has only biotic examples.
It is called a derived character. Hope this helps! (:
The answer is b the protists
Answer:
Biodiverisity can increase the rate of extinction
Explanation:i did the quiz my self thats teh answer for this question
