Podcast
Questions and Answers
What is the defining characteristic of a stable ecosystem?
What is the defining characteristic of a stable ecosystem?
- Low genetic diversity within populations
- Frequent fluctuations in species population size
- Constant extinction of species
- Constant species evenness, density, and population size (correct)
Why can stable populations come close to ideal ecological stability?
Why can stable populations come close to ideal ecological stability?
- Because all species within the population remain constant
- Due to high levels of genetic diversity within populations (correct)
- Because populations never experience fluctuations
- Because no other species can fill ecological roles
What is a key advantage of a rainforest ecosystem when a species goes extinct?
What is a key advantage of a rainforest ecosystem when a species goes extinct?
- Constant decline in population size
- High diversity of similar species to fill ecological roles (correct)
- Low genetic diversity making recovery easier
- Lack of other species to fill ecological roles
Why is ecological diversity rich on a smaller scale in rainforests?
Why is ecological diversity rich on a smaller scale in rainforests?
What is a major threat to rainforests leading to their global decline?
What is a major threat to rainforests leading to their global decline?
How do rainforests maintain high levels of genetic diversity?
How do rainforests maintain high levels of genetic diversity?
What role does species evenness play in a stable ecosystem?
What role does species evenness play in a stable ecosystem?
Why are rainforests considered relatively stable ecosystems?
Why are rainforests considered relatively stable ecosystems?
What causes rainforests to face extinction despite being highly diverse?
What causes rainforests to face extinction despite being highly diverse?
What best describes the impact of overharvesting on an ecosystem?
What best describes the impact of overharvesting on an ecosystem?
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