Question

Cockroach, house fly and mosquitoes are insect because they have

• A. Chitinous exoskeleton and body divided into head and cephalothorax
• B. Six legs, ocelli and body divided into head, thorax and abdomen
• C. Segmented body with jointed feet and chitinous exoskeleton
• D. Three pairs of legs, one pair of antennae and flame cells

Answer 1

The correct option is B Six legs, ocelli and body divided into head, thorax and abdomen

Insects are the organisms which are different from the organisms belonging to the group of Arthropods. These organisms have three pair of legs and two pairs of wings. The body is composed of three parts known as head, thorax and abdomen. They have two antennae in the head region which are the sensors for smell or olfaction. The members of Arthropods do not have wings and antennae. They have compound pair of eyes which are called as ocelli.

Thus, the correct answer is option C.