Question

multiple choice question
some sympatric species are behaviorally isolated because they produce different chemicals called

○ mating attractants
○ zygotes
○ displacers
○ pheromones

Explanation:

Pheromones are chemical signals that can affect the behavior of other individuals of the same species, and different pheromones can lead to behavioral isolation in sympatric species. Mating attractants are a type of pheromone but the general term is more appropriate here. Zygotes are the result of fertilization, not the isolating chemical. Displacers are not relevant in this context.

Answer:

D. pheromones