level: 19.1 Populations in ecosystems
Questions and Answers List
level questions: 19.1 Populations in ecosystems
| Question | Answer |
|---|---|
| Ecological niche | - A niche refers to where an organism lives and what it does there, how it fits into the environment |
| The competitive exclusion principle | - Some species may appear very similar, but their nesting habits or other aspects of their behaviour will be different, or they may show different levels of tolerance to environmental factors, such as a pollutant or a shortage of oxygen or nitrates - No two species occupy exactly the same niche - This is known as the competitive exclusion principle |