Question

Choose the correct answers from the alternatives given.
Phylum Arthropoda is characterised by the presence of:

• A. unjointed appendages, parapodia and external segmentation
• B. a chitinous cuticle forming the exoskeleton, paired and jointed legs and external segmentation
• C. three pairs of legs, triploblastic and pseudocoelomate.
• D. hairs, three pairs of legs and external segmentation.

Answer 1

The correct option is B a chitinous cuticle forming the exoskeleton, paired and jointed legs and external segmentation

Arthropods are characterized by their jointed limbs and cuticle made of chitin, often mineralized with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages.

So, the correct option is 'A chitinous cuticle forming the exoskeleton, paired and jointed legs and external segmentation'.