Frank could simply be a short-term memory loss, while Jerome could have a muscular dystrophy
The process of cellular differentiation is a direct result of a differiental
Your answer should be A. by observing the formation of sedimentary rocks.
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.
