5 Written questions
5 Matching questions
- Herbivores (primary consumers)
- Autotroph (producer)
- a A prokaryotic (single-celled) organism that acts as a decomposer. It gets the nutrients it needs by breaking down dead organisms.
- b The slow passage of a liquid through a filtering medium.
- c They use the producer organisms to provide them with their food.
- d Any organism that produces organic compounds from inorganic compounds, usually through photosynthesis.
- e Relationships that exist between individuals of different species, where at least one party benefits from the relationship.
5 Multiple choice questions
- They eat the primary consumers as their source of food.
- Water that flows over the ground surface rather than soaking into the ground
- Removal of dissolved materials from soil by water moving downwards
- The process by which two species evolve in response to changes in each other.
- The total mass of living matter in a given unit area
5 True/False questions
Denitrification → The process by which a body of water becomes too rich in dissolved nutrients, leading to plant growth that depletes oxygen.
heterotroph (consumer) → Organism that obtains energy from the foods it consumes.
Eutrophication → The conversion of nitrates into nitrogen gas.
Ecology → The total mass of living matter in a given unit area
Natural Selection → A natural process resulting in the evolution of organisms best adapted to the environment.