Energy transfer between trophic levels Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. A consumer ingests 600 kJ, loses 200 kJ in faeces and urine and 300 kJ in respiration. What is its net production?
- A. 100 kJ
- B. 400 kJ
- C. 300 kJ
- D. 1100 kJ
2. Energy available at level 1 is 8 000 kJ and level 2 gets 800 kJ. What is the efficiency of transfer?
- A. 0.1 %
- B. 90 %
- C. 1 %
- D. 10 %
3. Which is a reason for energy loss from a trophic level?
- A. Energy is destroyed
- B. Energy is lost as heat from respiration
- C. Producers do not respire
- D. Decomposers add energy
4. Why do mammals convert a smaller percentage of intake to biomass than insects?
- A. They eat less
- B. They use more energy in respiration to maintain body temperature
- C. They do not produce faeces
- D. They respire anaerobically
5. What is lost in F?
- A. Heat from respiration
- B. Energy used in photosynthesis
- C. Chemical energy in faeces and urine
- D. Energy stored as new biomass