Apocrine glands produce what type of chemical?

Apocrine glands primarily produce pheromones, which are chemical substances that can influence the behavior and physiology of other individuals of the same species. These glands are located in specific areas of the body, such as the underarms and genital region, and their secretions are typically associated with social and sexual communication. Pheromones play a significant role in attracting potential mates and conveying social signals.

In contrast, hormones are produced by endocrine glands and are involved in regulating various physiological processes within the body. Enzymes are proteins that catalyze biochemical reactions and are produced by different types of glands, primarily in the digestive and metabolic processes. While some proteins may be present in the secretions of apocrine glands, the defining characteristic of their production is the synthesis of pheromones. Therefore, recognizing the primary function of apocrine glands as related to pheromone production clarifies why this choice is the best answer.