The Integumentary System Is Made Up of

question 36

Multiple Choice

The integumentary system is made up of

• A)skin.
• B)nails.
• C)hair.
• D)skin, hair, and nails.

---

Definitions:

Chitin-Hardened Jaws

Structural feature referring to jaws strengthened by chitin, a fibrous substance forming the exoskeleton of arthropods and other organisms.

Marine Polychaetes

A diverse class of annelid worms, commonly known as bristle worms, that live in various marine environments.

Chitin-Reinforced Bristles

Stiff bristles made stronger with the natural polymer chitin, commonly found in the exoskeletons of arthropods.

Chitin-Hardened Tentacles

Tentacles strengthened by chitin, a polysaccharide found in the exoskeletons of arthropods and cell walls of fungi.