Interspecific competition I believe
Answer:
Only euryhaline organisms would.
Explanation:
A genetic pool is the absolute hereditary variety found inside a populace or an animal categories. A huge genetic stock has broad hereditary variety and is better ready to withstand the difficulties presented by ecological anxieties.
Matthew was suffering an anxiety attack, this is proven with his feelings of being "overwhelmed.. feelings of intense apprehension". He was experiencing shortness of breath due to how he was feeling.