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Biology 9 Online
OpenStudy (anonymous):

Many insects, fish, and mammals release certain chemical messengers to signal reproductive readiness. What are these messengers called? A. Hormones B. Pheromones C. Enzymes

OpenStudy (anonymous):

B) Pheromones, Some creatures are able to detect these chemical messengers or pheromones from kilometres away.

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

your welcome, no problem

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