Question

(i) Bilaterally symmetrical and segmented body

(ii) Unjointed body and legs

(iii) Open circulatory system

(iv) Three pairs of wings and two pairs of legs.

Which of the following characteristics are not applicable to the cockroach?

• A. Only (i) and (ii)
• B. Only (ii) and (iii)
• C. Only (i) and (iii)
• D. Only (ii) and (iv)

Answer 1

The correct option is D Only (ii) and (iv)

Cockroach belongs to the phylum Arthropoda. These organisms are characterized by the bilaterally symmetrical body which is divided into many segments, joined appendages, an open circulatory system in which the hemolymph flows, two pair of wings and three pairs of legs.

Thus, the correct answer is option D.