1. Name something that is alive…

2. All living things have the same 5 characteristics

3. --- Cells: All Living things are made of cells
Unicellular = made of one cell
Can you think of any???
Multicellular = made of 2 or more cells
Prokaryotic cells (prokaryotes) = do NOT have a nucleus
Eukaryotic cells (eukaryotes) = has a nucleus

4. Single-Celled Organisms
Paramecium
Protist
Streptococcus pyogenes
Source:
Source:
Source:

5. It’s cellular!

6. --- All living things reproduce
Asexual: Reproduction without the aid of another individual
Reproduction by splitting or budding
Sexual: Two cells from different individuals unite to form a new organism (fertilization)

7. Asexual

8. Sexual

9. --- Growth and Development
Living organisms go through a development period, aging period, then death determined by their genetic code (DNA)

10. --- All living things use energy
Anabolism: Synthesizing complex substances from simpler ones
Creating glucose from water and
Carbon dioxide
Catabolism: The breaking down of
complex substances into simpler ones
Digestion
The combination of these
in a living organism is
called METABOLISM.

11. How do we get energy?
People take chemical energy (food) and change it to heat and mechanical energy
Called Cellular Respiration
Plants take light energy (sun), and change it to chemical energy (sugars)
Called photosynthesis

12. --- Living Things Respond To Their Environment
Homeostasis: Maintaining a stable internal environment (ex. body temp)
Living organisms are constantly reacting to different stimuli
(heat, light, pressure, etc)
Examples
Sweating
Goosebumps
Vomiting

13. In order to be considered LIVING, it is a must that an organism possesses ALL of these 5 characteristics, not just some

14. Needs of Organisms Water: can’t survive without it
Food: need a source of energy to survive
Living space: need a place to get food, water, and shelter