The term homeostasis refers to the maintenance of a relatively stable external environment. Goblet cells may be classified as unicellular glands. Growth of a tissue due to increase in cell size is called hypertrophy. A long bone contains one epiphysis and two diaphyses 32. Keratinocytes produce a brownish-black pigment called melanin.
Coenzymes are organic molecules that are derived from water-soluable vitamins.
Anaerobic respiration does not require oxygen. Steroid hormones are produced by cells in the gonads. Glucose enters cells by a process called facilitated diffusion. Anabolic metabolism requires energy. Choose the best answer.