HORMONAL SYSTEM (ENDOCRINE SYSTEM)   In addition to the nervous system, the endocrine system also helps in coordinating the activities of our body. A group of endocrine glands which produces various hormones forms the endocrine system. It is also known as hormonal system. The various endocrine glands in human body are – Hypothalamus, Pituitary, Thyroid,…

Control and Coordination in Animals   Multicellular organisms have specialized organ system to coordinate their activities. Simple multicellular organism like Hydra consists of a network of nerve cells. Thus Hydra has only nervous system to coordinate its activities. The control and coordination in higher animals (Human) takes place through combination of nervous system and hormonal…