Which of the following has no segmentation [CPMT 1981]
A) Hydra
B) Earthworm
C) Cockroach
D) Centipede
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hiii,
option B
hope helps
option B
hope helps
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The correct option for the animal which has no segmentation is A) Hydra.
- Segmentation is a unique feature found in Annelida, Arthropoda and chordates.
- Hydra is Coelenterata so, they don't have segmentation.
- Annelida and Arthropoda organisms are non-chordates.
- The earthworm is Annelida and it increases soil fertility so, they are known to be farmers' friends.
- Arthropoda includes insects, flies, millipedes, centipedes and crustaceans.
- Cockroach and Centipedes are Arthropoda and they have jointed appendages and segmentation over their body.
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