Which of the following algae produces synzoospores?
Vaucheria is a yellow-green alga, in which synzoospore (also called as coenozoospor) develop. These are multiflagellate zoospore which is present especially in aquatic form. This zoospore first swims for some time, then settles down and withdraws its flagella, secrets a wall around and ultimately germinates.
The correct answer is D.