A lab activity where pond water samples are collected to observe the requirements for the growth of phototrophic organisms. To observe these requirements samples are separated into different variable groups. One group is incubated in the...

This resource over cyanobacteria (blue-green algae) explains what blue-green algae is, what blooms are and how they are harmful to livestock, how people and animals are effected by exposure to this algae, and more.

Explains what stromatolites are, their formation from colonies of cyanobacteria, their evolutionary importance, and where they can be found living today. Thrombolites are similar to stromatolites but form differently. They can also still...