Give an example of an organism that plays each of these rules: primary producer, primary consumer, secondary consumer, and tertiary consumer. Describe some of the ways in which mesofauna play...

Give an example of an organism that plays each of these rules: primary producer, primary consumer, secondary consumer, and tertiary consumer.

Describe some of the ways in which mesofauna play significant roles in soil metabolism even though their biomass and respiratory activity is only a small fraction of the total in the soil.