A) Hydra
B) Leech
C) Ascaris
D) Fasciola
Correct Answer: A
Solution :
Diploblastic animals have a body cavity made of two cellular layers - an ectoderm and an endoderm. The cnidarians are diploblastic, whereas all other metazoans are triploblastic. In small, simple cnidarians, such as Hydra, the diploblastic condition is clearly visible.You need to login to perform this action.
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