This is a colon : : Colons can be used at the beginning of a list. . This is a list of animals: birds, cats, insects, pigs, and sheep. . Colons can be used to replace a semicolon in between two parts of a sentence, but this is not common today.
Define hormone. A chemical (protein, steroid or amine) produced by the endocrine gland that is transported via the blood to the body where it has the ability to effect all the bodily cells or target cells/organs.efine hypothalamus. Part of the brain that links the endocrine system and the nervous system and regulates the pituitary gland whilst regulating basic functions of the body; temperature, water balance, food intake and controls/intigrates the autonomic nervous system.
Hormones are a regulatory substance produced in an organism and  transported in tissue fluids such as blood to stimulate cells or  tissues into action. Hormones are vital fo â¦ r proper function of the  body because the substances trigger the proper function.Some  things that could go wrong with the body function when hormones are  absent could be lack of growth and fertility.1 person found this useful.here are similar regulating substances that the hypothalamus uses to control pituitary function with respect to other glands. In the case of estrogen and progesterone (and testosterone in men), this substance is called gonadotropin releasing hormone (GnRH).