Question

Character common in Spider, Cockroach and Centipede is

• A. Compound eyes
• B. Book lungs
• C. Green glands
• D. Jointed legs

Answer 1

The correct option is D Jointed legs

• A character common in the spider, cockroach, and centipede is jointed legs as all these belong to phylum Arthropoda.

• Arthropod eyes are called compound eyes because they are made up of repeating units, the ommatidia, each of which functions as a separate visual receptor. Spiders do not have compound eyes, whereas cockroach has compound eyes like centipedes.
• A book lung is a type of respiration organ used for atmospheric gas exchange that is found in many arachnids, such as scorpions and spiders.
• Green glands- one of the pair of excretory organs in each side of the head region of decapod crustaceans, emptying at the base of the antennae.