Question

In insects the body is divided into
A. Head, thorax, abdomen
B. Head, hand, legs
C. Head, abdomen, legs
D. Abdomen, hand, legs

Answer 1

Hint: The division of the phylum arthropod is insecta in which the further classification is based upon the morphological characters which are different and three characters are same in all insect groups.

Complete answer:
The morphology of insects can be observed with the naked eyes. If we see clearly then we can see that the insects have different sets of wings in the entire category depending upon the need and requirement. Like butterflies have bigger wings and the flies have a smaller wing. The wings are also of different color and type and sometimes transparent also. Now if we analyze the limbs or legs of the insects then there are differences in that field also, based on the method and requirement of the move the legs of the insects are developed. Like grasshoppers have bigger hind limbs because they have to move by jumping and flies have smaller legs because their primary mode of movement is flying only. The insects generally do not have hands and their legs are also called the limbs and there is no classification of them into the hands and legs. The head, thorax and abdomen have different sets of functions and the various tissues of the organisms are distributed entirely. The other characters of the insects are different not only because of the requirements but also depending upon the habitat of the organism. Also, the differences also help them in defence mechanisms against their predators.

Hence, the correct answer is option (A).

Note: The group insecta is made with a basic requirement of some constant characters throughout the group which are basically head, thorax and abdomen; and all insects have these characters without any modification.