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Question
Which of the following organisms have exoskeleton?
Which of the following organisms have exoskeleton?
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Solution
The correct option is D Housefly
Nereis, Pheretima (earthworm) and leech are annelids. House fly is an arthropod. Annelids are devoid of exoskeleton. But exoskeleton is a characteristic feature of arthropods. The skeleton outside their body or exoskeleton is made up of chitin which is a type of carbohydrate. It is impermeable to water and protects the insect from desiccation or drying up.
Nereis, Pheretima (earthworm) and leech are annelids. House fly is an arthropod. Annelids are devoid of exoskeleton. But exoskeleton is a characteristic feature of arthropods. The skeleton outside their body or exoskeleton is made up of chitin which is a type of carbohydrate. It is impermeable to water and protects the insect from desiccation or drying up.
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