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