General Biology Test 1 (Recommended)

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Across
  1. 4. Digests organic molecules for energy.
  2. 5. Makes organic molecules with sunlight, CO2,H2O
  3. 8. All species descended from one
  4. 12. ___ selection is the selective breeding of desired characteristics
  5. 15. water fearing.
  6. 17. In this bond atoms give up or acquire electrons to complete outer shell
  7. 19. the calories in ___ is 1 kilocalorie.
  8. 21. ___ electrons in 1st orbital
  9. 22. Non-living part of Ecosystem.
  10. 23. ___bond attraction between a partial
  11. 27. ___ code is the same for all species.
  12. 30. ___ hypothesis negates the original.
  13. 31. ___ is the study of life.
  14. 33. ___ number that equals protons + neutrons.
  15. 34. Different number of electrons.
  16. 37. ___ has DNA in cytoplasm. No nucleus.
  17. 39. Different number of neutrons.
  18. 42. ___ number equals the number protons.
  19. 43. ___ bond is interaction of positively and negatively charged ions(Na+Cl-)
  20. 44. pH is ____ times this up or down.
  21. 45. Substances that dissolve in solvents are ___. (Water and Salt)
  22. 46. Part of the atom that defines an element.
  23. 48. ___ element makes up 0.001% of the body.
  24. 49. ___ must be testable and falsifiable.
Down
  1. 1. ___ is broad in scope, generates new hypothesis, supported by evidence.
  2. 2. Smallest unit of an element that retains the properties of the element.
  3. 3. ___ bond two atoms share electrons (H2O)
  4. 6. water loving.
  5. 7. Living part of Ecosystem.
  6. 9. ___ is the mechanism of evolution
  7. 10. the heat to raise 1g of water 1 degree.
  8. 11. Defined by the number of protons.
  9. 12. Goes from 7 to 0. Donates H+ ions.
  10. 13. ___ goes from 0 to 14.
  11. 14. ___ feedback in which an end product speeds up its own production.
  12. 16. ___published the Origin of the Species.
  13. 17. The ___-hydrogen bond is non-polar covalent.
  14. 18. these bonds share electrons unequally. (H2O)
  15. 20. this atom carries the partial negative charge in H2O
  16. 24. ___ has DNA enclosed in a membrane bound organelle called a nucleus.
  17. 25. and a partial negative atom (2 H2O's)
  18. 26. Goes from 7 to 14. Accepts H+ ions.
  19. 28. ___ electrons in 2nd orbital
  20. 29. ___ feedback in which the response reduces the initial stimulus
  21. 32. ___ is the top four elements in human body by valence.
  22. 35. In a N-H bond, the ___ is negative.
  23. 36. these bonds share electrons equally. (CH4)
  24. 38. ___ The letters of DNA building blocks.
  25. 40. Electrons that gain energy move to the ___ shell.
  26. 41. the heat to raise 1,000g of water 1 degree.
  27. 47. The building blocks of DNA