Comparing Life

1. Comparing Life Living things are both similar to and different from each other and from nonliving things.

2. Objective 1. Compare and contrast the parts of plants, animals, and one-celled organisms.

3. Cells • Living things are composed of cells

4. Cells Muscle Cells Cells provide structure and carry on major functions to sustain life.

5. Cells Heart Muscle Cells Cells provide structure and carry on major functions to sustain life.

6. Cells Red and White Blood Cells Cells provide structure and carry on major functions to sustain life.

7. Cells • Cells are usually microscopic in size.

8. Cells Chimpanzee • cells function similarly in all living things Strep bacteria Onion plant

9. Cell Division • Cells grow and divide, producing more cells. E. Coli bacteria dividing

10. Cell Division • Cells grow and divide, producing more cells. Paramecium dividing

11. Cell Division • Cells grow and divide, producing more cells.

12. Cell Division

13. Cells take in nutrients • Cells use nutrients to • provide energy for the work that cells do • to make the materials that a cell or an organism needs. Photosynthesis Cell Respiration

15. Cells take in nutrients • to make the materials that a cell or an organism needs. Photosynthesis

16. Cells take in nutrients • to make the materials that a cell or an organism needs. Photosynthesis

17. Cells take in nutrients • To provide energy for the work that cells do Cell Respiration

18. Basic Cell Structure • Most cells have cell membranes, genetic material, and cytoplasm.

19. Even bacteria! bacterial chromosome

20. Structures Unique to Plant Cells • Some cells have a cell wall and/or chloroplasts. Elodea

21. Structures Unique to Plant Cells • Some cells have a cell wall and/or chloroplasts. Cell Wall Chloroplast

22. The Nucleus • Many cells have a nucleus.

23. Unicellular Organisms • Some organisms are single cells Amoeba

24. Unicellular Organisms • Some organisms are single cells Paramecium

25. Unicellular Organisms • Some organisms are single cells Euglena

26. Multicellular Organisms • Some organisms are made up of many cells Homo sapiens

27. Multicellular Organisms • Some organisms are made up of many cells Hydra

28. Multicellular Organisms • Some organisms are made up of many cells Oak Tree

29. Multicellular Organisms • Some organisms are made up of many cells Daphnia

30. Levels of Organization • Cells are organized for more effective functioning in multicellular organisms.

31. Levels of Organization .

32. Levels of Organization Cell Tissue Organ Organ System

33. Plants • Many plants have roots, stems, leaves, and reproductive structures.

34. Plants • These organized groups of tissues are responsible for a plant’s life activities.

35. Multicellular Organism Human Cardiovascular System • Animals have similar organs and specialized systems for carrying out major life activities. Pig Cardiovascular System

36. Digestive Systems

37. Classification • Living things are classified by shared characteristics on the cellular and organism level. Bacteria Cells with a Nucleus

38. Classification • In classifying organisms, biologists consider details of internal and external structures.

39. Classification • Biological classification systems are arranged from general (kingdom) to specific (species).

40. Classification • Biological classification systems are arranged from general (kingdom) to specific (species).

41. Classification • Biological classification systems are arranged from general (kingdom) to specific (species).