Q.

The chemicals released by one species of animals in order to attract the other members of the same species are -

A. Hormones
B. Nucleic acids
C. Pheromones
D. Steroids
Answer» C. Pheromones
Explanation: A pheromone is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting outside the body of-the secreting individual to impact the behavior of the receiving individual. There are alarm pheromones, food trail pheromones, sex pheromones, and many others that affect behavior or physiology. Their use among insects has been particularly well documented.
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