Biology Revision

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Across
  1. 2. A pair of muscles that work together to move a joint.
  2. 3. A diagram that shows how food chains in an ecosystem are linked.
  3. 5. A specialised cell in animals that sends electrical signals around the body.
  4. 9. The area in which an organism lives
  5. 11. Both the living organisms and the area in which they live.
  6. 14. The total number of one species living in an area.
  7. 15. The powerhouse of the cell, where food is broken down to release energy (respiration)
  8. 20. A chemical reaction where food and oxygen react to produce water and carbon dioxide (and releases energy)
  9. 21. A group of the same type of cell working together to perform a function.
  10. 23. Specialised structures inside a cell. Translates to 'little organ'
  11. 25. The smallest unit of a living organism.
  12. 26. An organism made up of only one cell.
  13. 28. Connects bones to bones in a joint.
  14. 29. Jelly-like substance found in cells, this is where the reactions take place.
  15. 30. The organelle that surrounds the cell, controlling what moves in or out.
  16. 31. Tail-like substance that some cells use to move around (sperm and euglena)
  17. 32. Connects muscles to bones in a joint.
Down
  1. 1. An optical instrument used to magnify objects so small details can be seen clearly
  2. 4. Group of different tissues working together to carry out a function.
  3. 5. The brains of a cell, this is where the DNA is stored.
  4. 6. The way in which living organisms depend on each other to survive, grow and reproduce.
  5. 7. The build up of toxic chemicals inside organisms in the food chain.
  6. 8. A particular place or role an organism has in its ecosystem.
  7. 10. The collection of different organisms living in an ecosystem.
  8. 12. A component of a cell containing liquids, plants use these to help keep them rigid.
  9. 13. An animal that eats other animals.
  10. 16. smooth tissue covering the ends of bones to reduce friction and protect them from wear and tear.
  11. 17. The organelle that surrounds plant cells giving them their structure.
  12. 18. A cell with a certain shape or structure to help it carry out its function.
  13. 19. An animal that gets eaten by other animals.
  14. 22. All the bones in an organism.
  15. 24. Plants or algae that create their own food using sunlight in a process called photosynthesis.
  16. 27. The part of a plant cell that produces food via photosynthesis.