Multiple choice

The arthropod exoskeleton is composed of a

  1. mixture of several kinds of polysaccharides

  2. mixture of several kinds of proteins

  3. single-complex polysaccharide called chitin

  4. single-complex protein called arthropodin

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The arthropod exoskeleton is composed of a single-complex polysaccharide called chitin.