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Explain the following : (i) Testes and...

Explain the following :
(i) Testes and Ovaries are considered as the primary sex organs.
(ii) Advantage of seed production in plant.
(iii) Vas deferens is long in human male.

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(i) Both produces gametes and sex hormones.
(ii) Contains baby plant (embryo) which maintains the species of a particular plant.
(iii) To carry sperm from testes, which enter penis for their release.
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