Are stramenopiles that commonly are found decomposing dead animals in freshwater habitats.

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Variety of living organisms; includes genetic, species, and ecological types.