End of Year 9 Revision

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Across
  1. 4. The substance which gives pigment in chloroplasts
  2. 7. Organisms that are able to interbreed to produce fertile offspring
  3. 8. Study of living things and how they are affected by biotic and abiotic factors
  4. 9. This provides the cell with shape and support
  5. 12. makes up 78% of the atmosphere
  6. 14. Bacteria which turns protein and urea into ammonium ions
  7. 15. poisonous and harmful gasses released into the atmosphere
  8. 16. Different stages in the food chain(7,5)
  9. 17. Smallest part of the cell (ribosomes are an example)
Down
  1. 1. The way plants and animals change to fit their environment
  2. 2. a very dangerous colourless and odourless gas (6,8)
  3. 3. a lot of this is produced in the cattle industry and paddy fields
  4. 5. provides energy for nitrogen to react with oxygen
  5. 6. process of removing water-soluble nutrients from the soil due to rainfall
  6. 10. the total weight of living organisms
  7. 11. Cells that cannot contract or shorten
  8. 13. A consumer that eats both plants and animals