A chemical produced by animals to control their developmental processes at different stages of life, among other functions, is known as a ____.
A) gene
B) protein
C) pheromone
D) hormone
E) carbohydrate

Question

Quizplus · Accepted Answer

Hormones are chemical messengers produced by animals to regulate various physiological functions including growth, development, and behavior. Pheromones (C) are also chemical messengers produced by animals, but they are used for communication between individuals of the same species. Genes (A) are units of heredity that determine traits in living organisms, while proteins (B) are complex molecules composed of amino acids that perform a wide variety of functions in the body. Carbohydrates (E) are a type of organic molecule that serve as a source of energy in living organisms.

A Chemical Produced by Animals to Control Their Developmental Processes