2. A. They store water. B. The digest food particles. C. They make new cells. D. The package proteins.

3. A. They store water. B. The digest food particles. C. They make new cells. D. The package proteins.

4. A. In the Nucleus B. In the mitochondria C. In the chlroplasts D. In the ribosomes

5. A. In the Nucleus B. In the mitochondria C. In the chlroplasts D. In the ribosomes

6. A. The nucleus of a cell B. The fluid inside a cell C. The genetic material in a cell D. The proteins in a cell

7. A. The nucleus of a cell B. The fluid inside a cell C. The genetic material in a cell D. The proteins in a cell

8. A. Only prokaryotes B. Only eukaryotes C. Only small organisms found in pond water D. Both prokaryotes and eukaryotes

9. A. Only prokaryotes B. Only eukaryotes C. Only small organisms found in pond water D. Both prokaryotes and eukaryotes

10. a. Are commonly known as bacteria b. Have ribosomes very much like those or eukaryotes c. Have circular DNA d. Include species of extremophile organisms

11. a. Are commonly known as bacteria b. Have ribosomes very much like those or eukaryotes c. Have circular DNA d. Include species of extremophile organisms

12. A. Part of a prokaryote B. Surrounded by membranes C. Unable to move around in a cell D. Part of the nucleus

13. A. Part of a prokaryote B. Surrounded by membranes C. Unable to move around in a cell D. Part of the nucleus

14. A. Robert Hooke B. Rudolf Virchow C. Over a period of more than 200 years. D. In the year 1858

15. A. Robert Hooke B. Rudolf Virchow C. Over a period of more than 200 years. D. In the year 1858

16. A. Cells B. Eukaryotes C. Prokaryotes D. Protists

17. A. Cells B. Eukaryotes C. Prokaryotes D. Protists

18. A. Cytoplasm B. Nucleus C. Cell membrane D. DNA

19. A. Cytoplasm B. Nucleus C. Cell membrane D. DNA

20. A. Animals B. Ponds C. Cells D. Eggs

21. A. Animals B. Ponds C. Cells D. Eggs

22. A. Plants B. Protists C. Cells D. Eggs

23. A. Plants B. Protists C. Cells D. Eggs

24. A. An enzyme B. A vacuole C. A mitochondrion D. A nucleous

25. A. An enzyme B. A vacuole C. A mitochondrion D. A nucleous

26. A. Each contains larger cells than the level below it. B. Each is more complex that the level below it. C. Each performs the same functions as the level below it. D. Each is more specialized than the level below it.

27. A. Each contains larger cells than the level below it. B. Each is more complex that the level below it. C. Each performs the same functions as the level below it. D. Each is more specialized than the level below it.

28. A. Eukaryote B. Prokaryote C. Unicellular organism D. Multicellular organism

29. A. Eukaryote B. Prokaryote C. Unicellular organism D. Multicellular organism

30. A. Ribosomes B. Lysosomes C. Vesicles D. Vacuoles

31. A. Ribosomes B. Lysosomes C. Vesicles D. Vacuoles

32. A. Nucleus B. Nucleolis C. Mitochondrion D. Vacuoles

33. A. Nucleus B. Nucleolis C. Mitochondrion D. Vacuoles

34. A. Cell wall B. Endoplasmic reticulum C. Mitochondria D. Vacuoles

35. A. Cell wall B. Endoplasmic reticulum C. Mitochondria D. Vacuoles

36. A. Ribosomes B. The cytoskeleton C. The endoplasmic reticulum D. Instructions for how to make protein.

37. A. Ribosomes B. The cytoskeleton C. The endoplasmic reticulum D. Instructions for how to make protein.

38. A. Cell wall B. Cytoplasm C. Cytoskeleton D. Nucleus

39. A. Cell wall B. Cytoplasm C. Cytoskeleton D. Nucleus

40. A. Cell membrane B. Cell wall C. Ribosome D. Nucleus

41. A. Cell membrane B. Cell wall C. Ribosome D. Nucleus

42. A. They don’t have hard shells like eggs. B. Their volume does not increase. C. Their volume is limited by how large their surface area is. D. Their surface area to volume ratio is too small.

43. A. They don’t have hard shells like eggs. B. Their volume does not increase. C. Their volume is limited by how large their surface area is. D. Their surface area to volume ratio is too small.

44. A. The cells of plants and animals were the same. B. All plant parts were made of cells. C. The cells of plants were different from those of animals. D. All animal tissues were made of cells

45. A. The cells of plants and animals were the same. B. All plant parts were made of cells. C. The cells of plants were different from those of animals. D. All animal tissues were made of cells

46. A. Cell B. Nucleus C. Organelle D. Protist

47. A. Cell B. Nucleus C. Organelle D. Protist

48. A. One kind of tissue B. Only one function C. Two or more organs D. One main kind of cell

49. A. One kind of tissue B. Only one function C. Two or more organs D. One main kind of cell

50. A. Two or more tissues B. A group of cells C. Two or more systems D. Nerve and muscles

51. A. Two or more tissues B. A group of cells C. Two or more systems D. Nerve and muscles

52. A. An organism B. An organ system C. A tissue D. A structure

53. A. An organism B. An organ system C. A tissue D. A structure

54. A. Machines B. Systems C. Organisms D. Protists

55. A. Machines B. Systems C. Organisms D. Protists