Q. 44 Digestion is extracellular and intracellular in
1)
Obelia & Sycon
2)
Pleurobrachia & obelia
3)
Euspongia & Pleurobrachia
4)Sycon & Euspongia
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Answer: option 2
both coelentrata and ctenophora posses extracellular and intracellular digestion
Explanation:
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