In isogamous species, the gametes of Chlamydomonas undergo temporary clustering before they depart in pairs. The phenomenon is called

Gametic differentiation

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Clumping

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Homothallism

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Parthenogenesis

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Solution

The correct option is D Clumping
Clumping is a behavior in an organism, usually sessile, in which individuals of a particular species group close to one another for beneficial purposes.
Clumping can be caused by the abiotic environment surrounding an organism. Hence, In isogamous species, the gametes of Chlamydomonas undergo temporary clustering before they depart in pairs. The phenomenon is called Clumping.
So, the correct answer is "Clumping'.

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