volvox in drop of water under the microscope.

alga algae animalcule aquaculture asexual aureus background biology botany cell charophyte chloroplast classroom colonial colony daughter division drop education educational educationn fauna flora freshwater gonats grand green lab laboratory lesson life macro micro microbiology microscope microscopic nature phytoplankton plankton pond primitive protozoa protozoan reproduction school science spherical training volvox water wimperkugel zygnematophyceae zygote