Male gametes are flagellated in
Ectocarpus contain flagellated male gametes. Therefore, they are motile.
Spirogyra undergoes sexual reproduction by conjugation and the male gametes are non-motile.
Polysiphonia produces spermatium which is non-motile and carried to the female gamete by water.
Anabaena is a cyanobacterium and lacks flagellated cells.