Question

Give details of two ways in which a zygote develops in case of animals where fertilization is internal.

Answer 1

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Two different ways in which a zygote develops in case of animals where fertilization is internal are :

1. Internal fertilization in earthworm: An earthworm , though a hermaphrodite, does not fertilize itself. 

Two earthworms come in contact with each other and exchange sperms

Answer 2

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Two different ways in which a zygote develops in case of animals where fertilization is internal are :

1. Internal fertilization in earthworm: An earthworm , though a hermaphrodite, does not fertilize itself.

2. Two earthworms come in contact with each other and exchange sperms.

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