5 Written questions
5 Matching questions
- heterotroph (consumer)
- Natural Selection
- a The slow passage of a liquid through a filtering medium.
- b The total mass of living matter in a given unit area
- c A natural process resulting in the evolution of organisms best adapted to the environment.
- d Organism that obtains energy from the foods it consumes.
- e Relationships that exist between individuals of different species, where at least one party benefits from the relationship.
5 Multiple choice questions
- The study of environments.
- A relationship between individuals of different species that benefits both organisms.
- They eat the primary consumers as their source of food.
- The conversion of nitrates into nitrogen gas.
- A prokaryotic (single-celled) organism that acts as a decomposer. It gets the nutrients it needs by breaking down dead organisms.
5 True/False questions
commensalism → A symbiotic relationship between individuals of different species in which one individual benefits and the other neither benefits nor is harmed.
Population → All individuals of a species in a given area.
leaching → Removal of dissolved materials from soil by water moving downwards
Herbivores (primary consumers) → They use the producer organisms to provide them with their food.
runoff → Water that flows over the ground surface rather than soaking into the ground