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What makes something alive ? - PowerPoint PPT Presentation

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What makes something alive ?
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  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. 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

  9. 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.

  10. 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.

  11. Allright let’s see how well you paid attention To review the lab findings…let’s play a little game of…

  12. It’s Alive!?!?! …Or is it???

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

  14. How did you know???

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

  19. How did you know???

  20. Classify Herb • Alive • Dead but once alive • Never alive • Product of a living thing

  21. How did you know???

  22. Classify Yogurt • Alive • Dead but once alive • Never alive • Product of a living thing

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

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

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

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

  27. How did you know???

  28. The chicken and the egg | Science Buzz Classify the egg • Alive • Dead but once alive • Never alive • Product of a living thing

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

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

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

  32. 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