1. 1.1 The Study of Life Chapter 1 Biology in the 21 st Century

2. Earth is home to an incredible diversity of life. What does diversity mean to you? 1 Biosphere All the living things and places they are found. Everywhere life exits. 2Biodiversity The variety of life. Example: The number of different species in a given area, from a single community to the entire Earth.

3. What characteristics do all organisms share?

4. All organisms are made up of one or more cells. A cell is the basic unit of life. 1

5. 2 All organisms need a source of ENERGY for their life processes like metabolism. Metabolism-the chemical processes that build up or break down materials

6. 3 Response to Environment- all organisms must react to their environment in order to survive. Example: Plants grow toward the sun,

7. Reproduction and Development- Members of a species must be able to produce new individuals and pass their genetic material to their offspring. DNA- a molecule of genetic material ( deoxyribonucleaic acid). 4

8. All living things are….