Spider monkeys are among the largest New World monkeys; black-headed spider monkeys, the largest spider monkey, have an average weight of 11 kilograms (24 lb) for males and 9.66 kg (21.3 lb) for females.
IMMUNE SYSTEM. -responsible for protecting the body against bacteria, viruses, fungi, toxins, parasites, and cancer. -works with organs of lymphatic system, thymus, spleen, and lymph nodes, to clear body of these disease causing agents. LYMPHATIC SYSTEM.
The main functions of this system includes, being able to receive and interpret information that it gives from the environment. This system also controls and co-ordinates the internal organs, it's also linked to the endocrine system and its fast, efficient reflex actions protect the body from injury. ...read more.