Question

Pheromones are

• A. Produced by endocrine glands
• B. mRNAs
• C. Chemicals used in animal communication
• D. Proteins

Answer 1

The correct option is C Chemicals used in animal communication

Pheromones are chemicals that are used by various organisms of same species, for communication amongst them. They may be excreted or secreted from the body. They act like hormones outside the body of organism and affect the behaviour of other individual that is receiving the pheromones. Pheromones are also used by insects to attract mates.

So, the correct answer is 'Chemicals used in animal communication'.