level: Functioning ecosystems
Questions and Answers List
level questions: Functioning ecosystems
| Question | Answer |
|---|---|
| Define an ecological niche | The specific role and position of a species within an ecosystem, including its interactions with other organisms and its utilisation of resources. |
| List the stages of the carbon cycle. | Photosynthesis, respiration, decomposition, burning |
| List the stages of the nitrogen cycle. | Nitrogen fixation, ammonification, nitification, assimilation, dentrification. |
| State the stages of the water cycle. | Precipitation, evaporation, transpiration, condensation, runoff |
| Define what a keystone species is. | An organism that is required for the stability of an entire ecosystem |
| What does the competitive exclusion principle state (CEP)? | That two species with identicial niches cannot coexist indefinitely |
| What factors can create a loss of energy during energy transfer? | Radiation, reflection and absorption. |