Neurons are supporting cells in nervous tissue that can reproduce through cell division.

A. apocrine glands:Apocrine glands are sweat glands found in regions like the axillae and groin. They secrete a thicker fluid that, when acted upon by skin bacteria, produces body odor. They are not responsible for earwax production.

B. eccrine glands:Eccrine glands are the most numerous sweat glands, found across much of the skin. They secrete a watery solution important for thermoregulation but do not contribute to earwax formation.

C. ceruminous glands:Ceruminous glands are specialized modified apocrine glands located in the external auditory canal. They produce cerumen, or earwax, which protects the ear canal by trapping debris and providing antimicrobial properties.

D. merocrine glands:Merocrine secretion refers to the method by which many glands, including eccrine sweat glands, release their products through exocytosis. These glands do not produce earwax and are mainly involved in sweat production.

A. cartilage CT:Cartilage connective tissue provides structural support in joints, the respiratory tract, and the ear, but it is not a component of spleen or lymph nodes, which require a softer supportive framework.

B. reticular CT:Reticular connective tissue forms a delicate, branching network of fibers that supports lymphocytes and other immune cells in organs like the spleen and lymph nodes. This framework helps filter body fluids and supports immune function.

C. adipose CT:Adipose connective tissue stores energy and provides insulation and cushioning. While it may surround organs, it does not form the internal supportive framework of lymphatic organs.

D. smooth MT:Smooth muscle tissue is found in the walls of hollow organs, blood vessels, and the digestive tract. It plays a role in involuntary movement, not in forming the supportive structure of lymphoid organs.