The radiation pattern. depends on the number and the type of elements be-. ing used, and the physical and electrical structure of. the array. Numerous variations of antenna structures, as well as the type of elements are available, but for. simplicity only one kind of element is used in the. whole array structure [2].
Answer by MelindaS (1694) Actually, a gland is a more specific name for an organ. An organ is any specialized group of cells that together perform a certain function. A gland is a type of organ that produces a hormone. An example of a gland would be your thyroid, pituitary, or your pancreas. They produce different hormones.
Endocrine and exocrine glands are different in that endocrine glands do not have ducts to carry their secretions to specific locations.Exocrine glands usually secrete their products (not hormones or other chemical messengers) into the external environment, while the endocrine glands secrete hormones into the body.Some examples of exocrine glands are sweat glands, salivary glands,ndocrine and exocrine glands are different in that endocrine glands do not have ducts to carry their secretions to specific locations.