Question

Which of the following is wrong for an insect?

• A. Unjoined appendages
• B. Chitinous exoskeleton
• C. Cephalization
• D. Haemocoel

Answer 1

Answer: (A)

Unjoined appendages

Insects are a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, three pairs of jointed legs, compound eyes and one pair of antennae. Certain orders of insects (Paleoptera and Neoptera) do have wings. Insects exhibit cephalization because they have unique heads with special parts for consumption and perception and the distinct division of body parts.

So, the correct answer is option A.