<span>The answer is D. The living things in a biological community are called biotic components. Living things incorporate plants, creatures, microscopic organisms, parasites and that's only the tip of the iceberg. The non living parts of an environment are called abiotic elements. In a biological community some abiotic variables are daylight, temperature environmental gasses water and soil.</span>
Parasitism: One organism (the parasite) gains, while the other (the host) suffers. I think.... either that or it's
Commensalism: only one species benefits while the other is neither helped nor harmed. ... Almost positive that its Parasitism tho