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6. How has the use of antibiotics in farming adversely affected humans?

  • Increased antibiotic resistance
  • More meat
  • Increased human disease

7. Which of these isn't a reason why only 1% of the suns energy is not used in photosynthesis?

  • Light may not fall on Chlorophyll
  • Reflected back into space
  • Used for respiration
  • Wrong wavelength
  • A limiting factor

8. What is it called when extra fertilizers has no impact on yield?

  • Rubbish fertilizer
  • Law of diminishing returns
  • Limiting factor

9. What is the efficiency of this energy transfer - Rabbit has 6350KJm-2 year-1 a fox has 1250KJ m-2 year-1?

  • 66.6 KJ m-2 year-1
  • 508%
  • 19.8%
  • 19.8KJ m-2 year-1

10. What is net production?

  • Energy used as biomass
  • Light trapped by plant
  • Energy lost during respiration
  • Energy gained during respiration

11. Which of these is an advantage of biological control?

  • Doesn't kill natural preditors
  • Irradiates all pests
  • Quick

12. Which pyramid does consider time as a factor?

  • Number
  • Energy
  • Biomass

13. Which pyramid is this a positive for - easy to read and understand?

  • Energy
  • Number
  • Biomass

14. What is a detritrove?

  • Has a mouth and breaks down dead matter
  • An enzyme that breaks down dead matter
  • Dead matter

15. Which of these is not a pest control measure?

  • Fertiliesr
  • Vacuuming
  • Pest resistant plants
  • Natural preditors

16. What is on the first trophic level

  • Producer
  • Consumer
  • Fox
  • Bird

17. What additional energy is added to a agricultural ecosystem?

  • Fossil fuels
  • Food and fossil fuels
  • Chemical and solar
  • Sun, food and fossil fuels

18. How does restricted movement aid rate of growth?

  • Less energy in muscle contractions
  • Not targeted by preditors
  • Less heat loss