CLASS-X BIOLOGY EPISODE
... Control of Hormonal secretion:An endocrine gland produces hormones when it is stimulated. If gland is not stimulated it does not produce a hormone. Thus the control is very simple. What are Pheromones? Pheromones are chemical substances secreted by organisms. The pheromones are secreted by exocrine ...
... Control of Hormonal secretion:An endocrine gland produces hormones when it is stimulated. If gland is not stimulated it does not produce a hormone. Thus the control is very simple. What are Pheromones? Pheromones are chemical substances secreted by organisms. The pheromones are secreted by exocrine ...
Exocrine Glands
... Inside the hive Q. substance inhibits the building of Q. cell inhibits the development of the workers ovaries and the workers are attracted to the queen. The Hypopharyngeal glands The glands one on each side, of the workers head, each having it own duct and connected to the hypopharyngeal plate. The ...
... Inside the hive Q. substance inhibits the building of Q. cell inhibits the development of the workers ovaries and the workers are attracted to the queen. The Hypopharyngeal glands The glands one on each side, of the workers head, each having it own duct and connected to the hypopharyngeal plate. The ...
Pheromone
A pheromone (from Ancient Greek φέρω phero ""to bear"" and hormone, from Ancient Greek ὁρμή ""impetus"") 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. Pheromones are used from basic unicellular prokaryotes to complex multicellular eukaryotes. Their use among insects has been particularly well documented. In addition, some vertebrates and plants communicate by using pheromones.