Populations Quiz
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5 questions, one answer each
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1. What is a population?
- A. All species in an ecosystem
- B. A group of organisms of one species in the same area at the same time
- C. The non-living part of an environment
- D. A single organism
2. Which term describes all populations of different species in an ecosystem?
- A. Community
- B. Habitat
- C. Biome
- D. Niche
3. Which phase of the sigmoid curve shows the fastest population growth?
- A. Lag
- B. Exponential
- C. Stationary
- D. Death
4. What mainly causes the stationary phase of population growth?
- A. A sudden disease outbreak
- B. Resources becoming limiting so birth rate approximately equals death rate
- C. Complete absence of predators
- D. Unlimited food supply
5. Which combination of factors is most likely to cause a population to enter the death phase?
- A. Increased food supply and reduced competition
- B. Resource depletion and rising disease
- C. Immigration of new individuals
- D. Reduced predation only