1. What makes something alive? What makes something alive?

2. Characteristics of Life Cells, Energy Use, Response to Environment, Reproduction.

3. Learner Outcome: I can describe the four characteristics of life. I can describe the four characteristics of life. I can define the following words: I can define the following words: –Cell –Metabolism –Homeostasis –DNA

4. What is Biology? Biology is the study of all living things, from cells to ecosystems. Biology is the study of all living things, from cells to ecosystems. Organism: any living thing. Organism: any living thing.

5. All Organisms are made of Cells All living things are composed of cells. All living things are composed of cells. In multicellular organisms, cells are specialized to play a specific role. In multicellular organisms, cells are specialized to play a specific role. What types of cells are these? What types of cells are these?

6. All Organisms Need and Use Energy All living things use energy through metabolism: sum of all the chemical processes that occur in an organism. All living things use energy through metabolism: sum of all the chemical processes that occur in an organism. Some organisms produce their own energy while others must consume it. Some organisms produce their own energy while others must consume it.

7. All Organisms Respond to their Environment All living things must maintain stable internal conditions. All living things must maintain stable internal conditions. This is called homeostasis. This is called homeostasis.

8. All Organisms Pass on DNA from Parent to Offspring All living reproduce in order to pass on DNA. All living reproduce in order to pass on DNA. DNA: stores genetic information in all organisms. DNA: stores genetic information in all organisms. Development: process by which an adult organism arises. Development: process by which an adult organism arises.

9. Reproduction All species of an organism have the ability to reproduce. All species of an organism have the ability to reproduce. Reproduction is not essential to survival, but ensures continuation of a species. Reproduction is not essential to survival, but ensures continuation of a species.