Organisms that obtain their food by eating producers or other consumers are calledMultiple choice question.phytoplankton.heliotrophs.heterotrophs.autotrophs.

The energy in an ecosystem that is available for consumers to eat is called theMultiple choice question.heterotroph biomass.gross primary production.net primary production.amount of fixed nitrogen.

In the pyramid of energy, organisms that obtain their energy from only eating primary producers are calledMultiple Choicesecondary producers.tertiary consumers.secondary consumers.tertiary producers.primary consumers.

Producer organisms who make their own food are also known asa.Heterotrophsb.Automaticsc.Autotrophsd.Autographs

The major food producers for other living organisms is/areGroup of answer choiceshigher plants, cyanobacteria, and algae.cyanobacteria.higher plants and algae.algae.higher plants.

What type of organism occupies the first trophic level in a food chain?Multiple choice question.primary consumerheterotrophherbivoreprimary producer