2. Needs of Living Organisms Gaiser Life Science

3. Know What does a living organism need to stay alive? Evidence Page 13 Make 6 small sketches below showing the needs of living organisms.

4. Needs to live - use sun’s energy, H 2 O, and carbon dioxide to make their own food. - use sun’s energy, H 2 O, and carbon dioxide to make their own food. autotroph Clarifying ?s Information Page 14 heterotroph - needs help to get food – eat autotrophs or other heterotrophs - needs help to get food – eat autotrophs or other heterotrophs Example: plants Example: animals, mushrooms, slime molds 1. Energy 2. Water – Without H 2 O, food can’t be broken down to grow, reproduce, or disolve chemicals in the body Needs of Living Organisms 3. Living space – Shelter with others or compete for space.

5. Clarifying ?s Information Page 14 Summary: Needs of Living Organisms 3. Living space – Shelter with others or compete for space. 4. Stable internal conditions Example: maintaining fluid pressure in the cell homeostasis - Maintain stable internal conditions – even when outside conditions change. - Maintain stable internal conditions – even when outside conditions change. Example: body temperature cell theory - Explains the relationship between cells and living things – no matter how big or how small - Explains the relationship between cells and living things – no matter how big or how small 3 parts of cell theory 1. All living things are made of cells. 2. Cells are the basic unit of structure & function in living organisms. 3. All cells are produced from other cells.

7. This PowerPoint was created from Charlene Shea’s lecture notes by Tim Paterek. It is copyrighted and may not be reproduced outside the Vancouver School District. All pictures came from Google Image Search. To fall within the Fair Use Guidelines, this PowerPoint must be used within the confines of the classroom and may not be published back onto the Internet unless the pictures are removed.