Science Crossword Puzzle

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Across
  1. 2. sequential differentiation and segregation of replicated chromosomes in a cell’s nucleus that
  2. 6. breaking down of parts from a whole - to decay or rot, wasting away.
  3. 8. of animals
  4. 11. catalyst.
  5. 12. animals that eat only plants.
  6. 14. the material that something is made up of
  7. 15. complete cell division.
  8. 17. a group of atoms joined together
  9. 21. provide a plant with pollen to bring about fertilization.
  10. 22. a state of matter in which the particles are close together but randomly arranged
  11. 23. a substance that speeds up a chemical reaction in the body
Down
  1. 1. animals with a backbone.
  2. 3. rodents and other animals.
  3. 4. of life
  4. 5. community of living organisms and their interrelated physical and chemical environment
  5. 7. an instrument used to measure temperature.
  6. 9. a large body that orbits a star.
  7. 10. very small single-celled organisms with no nucleus
  8. 13. of mind
  9. 16. protein that increases the rate of a chemical reaction without being changed by the reaction; an
  10. 18. System/is a star and all the objects that orbit it.
  11. 19. organism, often microscopic in size, that obtains nutrients by consuming dead organic matter, thereby making nutrients accessible to other organisms; examples of decomposers include fungi,
  12. 20. of the smallest parts of a plant or animal tissue.