Question

Features common in silver fish, scorpion, dragonfly and prawn are:

• A. Three pairs of legs and segmented body.
• B. Chitinous cuticle and two pairs of antennae.
• C. Jointed appendages and chitinous exoskeleton.
• D. Cephalothorax and tracheae.

Answer 1

The correct option is C Jointed appendages and chitinous exoskeleton.

They all belong to the phylum Arthropoda( Joint appendages).

1. Appendages - Some or all the segments bear appendages. The appendages are jointed. It is variously modified for feeding, walking, jumping, swimming, clinging, sensory reception, copulation and defence.

2. Body wall- The body wall consists of a thick, chitinous cuticle and a single layered epidermis. The hard cuticle restricts growth and is periodically changed during growth. The process is called moulting or ecdysis.

So, the correct answer is option C- 'Joint appendages and chitinous exoskeleton'.