Year 9 Exam Revision

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Across
  1. 5. Villi are surrounded by a rich _ network
  2. 6. First order consumers eat mostly?
  3. 9. Increases the surface area for absorption in the small intestine
  4. 14. A symbiotic relationship where two organisms live closely together, one benefits while the other is unaffected
  5. 17. Adding more bulbs to a series circuit decreases the _ of the bulbs
  6. 19. resistance is measured in
  7. 21. A safety device in an electrical circuit
  8. 22. Good conductors of electricity
  9. 24. A symbiotic relationship where one organism lives on or in a host and receives benefit while the host is harmed or killed
  10. 25. A measure of the amount of energy provided to charges, measured in Volts.
  11. 26. Stop the flow of electrical charge
  12. 27. Lost at each stage of a food chain
Down
  1. 1. A circuit that has a number of branches, each with its own components
  2. 2. Removing urea from the blood is the responsibility of which organ
  3. 3. Living factors in an organisms environment
  4. 4. The killing of more animals than can be replaced by the natural breeding cycle resulting in a decrease of population
  5. 7. structure that connects the digestive and circulatory systems
  6. 8. The flow of charge, measured in Amps
  7. 10. The parts of an electrical circuit
  8. 11. large physical barrier to stop pathogens from entering the body
  9. 12. The breakdown of the remains of dead organisms on and below the Earth’s surface is largely the responsibility of
  10. 13. Recycled by decomposers breaking down dead organisms
  11. 15. A symbiotic relationship where both organisms benefit
  12. 16. A circuit with all its components arranged in a line, forming a single loop
  13. 18. In a series circuit the voltage is?
  14. 20. voltage = current x resistance
  15. 23. Non-living factors in an organisms environment