Question

Casting of exoskeleton of insect is called as

• A. Metachrosis
• B. Moulting
• C. Ecdysis
• D. Both B and C

Answer 1

The correct option is D Both B and C

Ecdysis or moulting is the process of casting off the dead rigid outer covering of the animal body during its growth. This process of moulting is the defining feature of the arthropods, nematodes, velvet worms etc. Since the cuticle of these animals typically forms a largely inelastic exoskeleton, it is shed during growth and a new, larger covering is formed.

Therefore, the correct answer is option D.