NEET Exam Model Paper 15
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Question : 83 of 180
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Which of the following characteristic features always holds true for the corresponding group of animals?
| 1) | Marine habitat, asymmetry | Porifera |
| 2) | Organ-system level, water vascular system | Echinodermata |
| 3) | Tracheae, Malpighian tubules | Arthropoda |
| 4) | Flame cells, hooks and suckers | Platyhelminthes |
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