Read the following:
A. Diploblastic with tissue level of organisation.
B. Digestion is both extracellular and intracellular.
C. Reproduction takes place only by sexual means.
D. Fertilisation is external with indirect development.
Select the animal that exhibits all the above features.

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Euspongia

Hydra

Fasciola

Pleurobrachia

answer is C.

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Detailed Solution

Pleurobrachia belongs to phylum Ctenophora. Ctenophores are diploblastic with tissue level of organisation. Digestion is both extracellular and intracellular. Reproduction takes place only by sexual means. Fertilisation is external with indirect development.

Hydra is also diploblastic with tissue level of organisation. Digestion is both extracellular and intracellular. It reproduces both asexually and sexually.

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