Question

Cockroach belongs to subphylum?
A. Hexapoda
B. Apoda
C. Myriapoda
D. Cephalopoda

Answer 1

Hint: Cockroach belongs to the phylum arthropoda meaning artho- joints and pods-locomotion. So, always count the number of pairs of legs or pods as the name suggests.

Complete answer:
cockroaches are the insects belonging to the phylum arthropoda and subphylum Hexapoda and the class Insecta.
They have three pairs of legs and their body is divided into head, thorax and the abdomen.
Apoda means limbless and is the class of amphibians. They mainly consist of worms which are hidden in the ground and in the stream substrates.
Myriapoda is the subphylum of arthropods consisting of millipedes, centipedes, and mainly terrestrial species.
Cephalopoda is the class of molluscs such as octopus, squids, and cuttlefishes.

Hence, option A will be the correct answer.

Additional Information: Hexapoda is the main class of phylum arthropoda and makes up the 70% of the phylum as the arthro means joint and pod means foot. Cockroaches are very generalized insects having chewing mouth types, having three pairs of legs with large coxae and five claws each. They have the front leg as the shortest and the hind legs the longest. They are known to have the robotic legs due to their structural modifications. They are one of the fastest moving species of insects

Note:
Cockroaches and myriapoda both belong to the arthropods classification. Hence to avoid confusion always looks for the relating characters of species. For example, hexapoda as the name suggests 6 pods are present which means 3 pairs of legs. Always look for simplification in the answers.