5 Written questions
4 Multiple choice questions
- the total mass of living matter in a given unit area
- An autotroph, usually a photosynthetic organism. Collectively, autotrophs make up the trophic level of an ecosystem that ultimately supports all other levels.
- only 10% of the energy contained in a particular trophic level is available for transfer to the next trophic level
- gets food from secondary consumers. also called third level consumers.
4 True/False questions
Primary consumer → consumer that feeds directly on producers
Herbivore → a flesh-eating animal
trophic level → step in a food chain, food web, or ecological pyramid
Decomposer → organism that obtains energy by eating only plants