What makes something alive ?

1. What makes something alive ?

2. What are living things? Do ALL 9 criteria have to be met? There are certain criteria that determine if something is living. Yes, ALL 9 criteria must be met.

3. Organism • Anything that possesses all of the following characteristics of life. • Living things R-CHARGEED !!

4. R - eproduce All living things produce offspring. Making copies of individuals by genetic transfer, sexually or asexually.

5. Cross-section of worm Leaf Centipede C - ells -Living organisms show an orderly structure (made up of cells) Examples:

6. The human body maintains an average temperature of 98.6 ºF. H - omeostasis The ability to maintain internal conditions separate from an outside environment. Example:

7. A - dapt to the environment R - espond to stimuli A living organism will respond to an environmental condition called a stimulus. An adaptation is any characteristic of an organism that improves its chances of surviving in its environment A plant growing in a specific direction due to a light stimulus.

8. Living things change -living things interact with the environment, and adjust to their surroundings -environment- biotic (living) and abiotic (nonliving) factors that an organism must constantly interact with (air, water, temperature, other organisms, etc.)

9. G - rowth D - evelopment • Getting Bigger / Increasing material • All of the changes that take place during the life of an organism. Maturing. Growth rings in a tree Amoeba absorbing nutrients

10. Transforming glucose into ATP for energy (to do work). E - energy Metabolism. Chemical and energy transformations. All organisms need energy for all life activities. Even thinking requires a considerable amount of energy.

11. E - evolve The gradual accumulation of adaptations due to environmental stimuli. (Organisms with more suitable adaptations are more likely to survive and reproduce) Example: Owls, and other nocturnal animals have evolved large eyes for better night vision.

12. Alright, let’s see how well you paid attention Review the lab findings

13. Classify the fetal pig • Alive • Dead but once alive • Never alive • Product of a living thing

14. How did you know???

15. Classify the fish • Alive • Dead but once alive • Never alive • Product of a living thing

16. How did you know???

17. Classify the conch shell • Alive • Dead but once alive • Never alive • Product of a living thing

18. How did you know???

19. Classify the grasshopper • Alive • Dead but once alive • Never alive • Product of a living thing

20. How did you know???

21. Hedgehog! • Alive • Dead but once alive • Never alive • Product of a living thing

22. How did you know???

23. Classify Plant • Alive • Dead but once alive • Never alive • Product of a living thing

24. How did you know???

25. Classify the cotton • Alive • Dead but once alive • Never alive • Product of a living thing

26. How did you know???

27. Classify the wood block • Alive • Dead but once alive • Never alive • Product of a living thing

28. How did you know???

29. Classify the synthetic sponge • Alive • Dead but once alive • Never alive • Product of a living thing

30. How did you know???

31. Classify the candle • Alive • Dead but once alive • Never alive • Product of a living thing

32. How did you know???

33. Classify the egg • Alive • Dead but once alive • Never alive • Product of a living thing

34. How did you know???

35. Classify the beans • Alive • Dead but once alive • Never alive • Product of a living thing

36. How many characteristics of life must an organism possess to be considered alive? • 1 • 3 • 5 • 2 and a half • All of them

37. All of the following are characteristics of life except… • Organized • Grow and Develop • Adapt • Maintain internal conditions • Move • Reproduce

38. Which of the following characteristics of life are not required for an organism to survive but instead to ensure survival of an entire species? • Organized • Grow and Develop • Adapt • Maintain internal conditions • Move • Reproduce

39. How are living things organized? There are various levels of organization: and get bigger. Let’s start small

40. 1) Atoms Atoms are the smallest unit of matter that have the chemical properties of a particular element. Examples: Carbon, Hydrogen, Oxygen…

41. 2) Molecules Glucose Amino Acid Water Molecules that are the small building blocks from which larger molecules are made. Examples:

42. 3) Macromolecules Cellulose Protein Large molecules consisting of many subunits. Examples:

43. 4) Organelles Mitochondria Cell Membrane Specialized structures inside of a cell. Examples:

44. 5) Cells The smallest unit of biological organization that biologists consider alive. Example:

45. 6) Tissue Muscle Skin A group of distinct and similar cells that carry out a specific set of functions. Examples:

46. 7) Organ Stomach Brain Groups of tissues organized together to carry out a particular set of functions. Examples:

47. 8) Organ System Groups of organs that function together to carry out broad sets of functions. Example:

48. 9) Organism (or individual) Individual that has its own distinct existence as a complex, reproducing unit. Examples:

49. 10) Population Herd of Zebra School of fish Group of freely interacting and breeding individuals of the same species. Examples:

50. 11) Community Marine community Populations of different species living and interacting together in a distinct area. Example: