Science exam

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Across
  1. 3. need at least 13 hours of darkness to bloom. They are short-day plants
  2. 5. ancestor species of an organism whose descendants are believed to form 2 distinct species.
  3. 6. wall a right structure that surrounds and protects some cell.
  4. 9. a structure that contains a cell wall,
  5. 11. States not simple organisms have slowly changed into new more simpler organisms over cellulitis of spears.
  6. 15. A protein that speeds up or slows down chemical reactions.
  7. 16. respiration the process in organisms of breaking down molecules to produce ATP.
  8. 17. scientist attempt to find out the ages of rocks
  9. 19. virus virus that becomes active immediately after an interesting cell.
  10. 24. whiplike structure that some cells use to propel themselves through the environment.
  11. 26. primary decomposer organisms in the world are bacteria and fungi
  12. 27. are the often colorful structure that help attract insects and birds
  13. 28. a form of a character such as fall or short.
  14. 29. must infect a host cell in order to reproduce.
  15. 30. & species scientific name of an organism comes from z levels of classification.
  16. 33. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus.
Down
  1. 1. the molecule that a cell uses to power many processes in the cell that need chemical energy.
  2. 2. plants are not affected by the length of day
  3. 4. need water for reproduction because the sperm must swim through moving eggs.
  4. 5. the green pigment that absorbs sunlight for plants to make phylogenesis happen.
  5. 7. causes fruit to ripen
  6. 8. and bacteria prokaryotes are classified into two kingdoms; those are them
  7. 10. small chemicals made by plant tissues that affect how a plant grows
  8. 12. structures structures that accord follow to evolutionary theory no lower have function
  9. 13. cell living cell in which a virus replicates
  10. 14. the studies passed down from generation to the next.
  11. 18. an inherited trait that helps an animal to survive
  12. 20. darwin became a naturalist on the hms beagle.
  13. 21. Virus- hides inside the host cell and can be inactive for months or years before the cell forces it to reproduce
  14. 22. random changes in DNA
  15. 23. pressed remind plants and animals.
  16. 25. fertilization an ovule forms a seed and the ovary forms a fruit
  17. 31. & Mathcellural refers to the number of cells that an organism has.
  18. 32. tiny nonliving particle that invades and then reproduces inside a living cell ( used in gene therapy)