1 Plant Kingdom
In Phaeophyceae: Union of gametes may take place within the oogonium 1) oogamous species 2) isogamous species 3) anisogamous species 4) all of the above
Solution
In Phaeophyceae: Sexual reproduction may be isogamous, anisogamous or oogamous. Union of gametes may take place in water or within the oogonium (oogamous species).
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