B4.2 Ecological niches Quiz
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5 questions, one answer each
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1. Bacteria that grow only at the bottom of a tube of gel with no oxygen are:
- A. Obligate aerobes
- B. Facultative anaerobes
- C. Obligate anaerobes
- D. Mixotrophs
2. Which organism uses saprotrophic nutrition?
- A. A bracket fungus on a fallen log
- B. A lion
- C. Euglena in sunlight
- D. An oak tree
3. Holozoic nutrition differs from saprotrophic nutrition because food is:
- A. Made by photosynthesis
- B. Ingested and digested internally
- C. Digested outside the body
- D. Absorbed without digestion
4. A strangler fig begins life as:
- A. A liana rooted in the soil
- B. An epiphyte on a branch
- C. A shade-tolerant herb
- D. A canopy tree seedling
5. The realized niche of a species is usually smaller than its fundamental niche because of:
- A. Mutation
- B. Competition with other species
- C. Photosynthesis
- D. Holozoic nutrition