Task: Class Definition Understanding (ontology: Earth_Environment/EnvironmentOntology)

Which of the following definitions best describes 'integumental system'?

A. Anatomical cluster consisting of the hematopoietic system and the lymphoid system, or its analogs.
B. Anatomical system that consists of the muscular and skeletal systems.
C. Connected anatomical system that forms a barrier between an animal and its environment. In vertebrates, the the concept consists of the epidermis, dermis plus associated glands and adnexa such as hair and scales. In invertebrates, the the concept may include cuticle.
D. Anatomical system that has as its parts the organs devoted to the ingestion, digestion, and assimilation of food and the discharge of residual wastes.

Answer: Connected anatomical system that forms a barrier between an animal and its environment. In vertebrates, the the concept consists of the epidermis, dermis plus associated glands and adnexa such as hair and scales. In invertebrates, the the concept may include cuticle.