Question

mid-term review
interaction species a species b
predation positive
predator negative
prey
parasitism positive
parasite negative
host
competition negative negative
mutualism positive positive
commensalism neutral positive
skip
which symbiotic interaction involves two organisms in which both benefit in a positive way?
parasitism
mutualism
competition
commensalism

Explanation:

The question asks for a symbiotic interaction where both organisms benefit positively. From the provided table, mutualism is defined as having "Positive" effects for both Species A and Species B, which matches the description. Other options do not fit: parasitism has one positive and one negative, competition has two negatives, and commensalism has one positive and one neutral. Thus, mutualism is the correct answer.

Answer:

mutualism