The number of trophic levels in an ecological pyramid A. Typically, does not exceed two trophic levels.
B. Is impossible to count because energy is lost at each trophic level.
C. Is limitless, because the sun does not stop producing energy.
D. Is limited by the amount of energy that is lost at each trophic level.

Cultures of the lake of the ozarks water samples were grown on enrichment media for identification. however, these organisms are present to some degree in all samples. an important question from a clinical perspective is whether or not there is a significant increase in the fecal coliform populations that would put people's health at risk. if you were part of the team investigating this outbreak, how would you best enumerate the fecal coliform threat? view available hint(s) cultures of the lake of the ozarks water samples were grown on enrichment media for identification. however, these organisms are present to some degree in all samples. an important question from a clinical perspective is whether or not there is a significant increase in the fecal coliform populations that would put people's health at risk. if you were part of the team investigating this outbreak, how would you best enumerate the fecal coliform threat? direct microscopic counts filtration count culture serial dilution count culture plate count culture

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

What are some characteristics of a free enterprise economy?