Question

read the following sentence and compare with endocrine gland a prominence are chemical substance secreted by organisms be these actors has chemical signal sector by exocrine gland prominence are used as signals by the members of same species ​

Answer 1

Answer:

Pheromones are secreted by exocrine glands of the skin and are poured on the surface of the skin hence they are called ectohormones. The smell of these substances affects the mutual behavior of members of species. Certain insects secrete pheromones to transmit the information of food sources or danger to their fellow insects. Certain insects secrete pheromones to attract their mating partners.

Exocrine glands are glands with ducts. The secretions of these glands are carried by ducts to a particular organ for some metabolic activities.

Endocrine glands are ductless glands. Their secretions get absorbed into the blood circulation to reach the specific organs to initiate a particular metabolic change. The chemicals secreted are called hormones. Hormones maybe steroids, proteins, peptides or amino acids.

1. Pheromones are also a chemical substance which is secreted by exocrine glands but they are not transferred by ducts instead they are poured directly on the surface of the skin.