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Question

Which of the following undergo external fertilisation?

A
Crustaceans
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B
Bryophytes
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C
Molluscs
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D
Echinoderms
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Solution

The correct options are
A Crustaceans
C Molluscs
D Echinoderms
External fertilisation is the process where the male and female gametes fuse outside the body.
Crabs and shrimp (crustaceans), oysters and squid (molluscs), sea urchin and sea cucumber (echinoderms) are some examples of organisms that undergo external fertilisation.

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