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Question
In Arthropoda, head and thorax are often fused to form cephalothorax, but in which one of the following classes, the body is divided into head, thorax and abdomen?
In Arthropoda, head and thorax are often fused to form cephalothorax, but in which one of the following classes, the body is divided into head, thorax and abdomen?
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Solution
The correct option is A Insecta
An arthropod body typically consists of head, thorax and abdomen. However, in some cases, the head and thorax may be fused to form cephalothorax, as seen in crustaceans (prawns, lobsters, crabs etc.). Class Insecta includes insects, most of which have their body divided into head, thorax and abdomen. Cockroach is a typical example. Myriapoda is a group of arthropods that includes millipedes, centipedes and the like. Arachnida is a class of arthropods that includes spiders.
An arthropod body typically consists of head, thorax and abdomen. However, in some cases, the head and thorax may be fused to form cephalothorax, as seen in crustaceans (prawns, lobsters, crabs etc.). Class Insecta includes insects, most of which have their body divided into head, thorax and abdomen. Cockroach is a typical example. Myriapoda is a group of arthropods that includes millipedes, centipedes and the like. Arachnida is a class of arthropods that includes spiders.
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