1. 1.1 The Study of Life Living things share some common characteristics All living things are made of one or more cells.

2. 1.1 The Study of Life Living things have levels of organization –Cell  Tissue  Organ  Organ system  Organism

3. 1.1 The Study of Life Living things obtain and use energy for growth and maintenance. -Metabolism: All of the chemical processes in an organism that build up or break down materials.

4. 1.1 The Study of Life Living things respond to their environment. –Stimuli, or physical factors, include light, temperature, and touch.

5. 1.1 The Study of Life Populations of living things have the ability to adapt to their environment. –Adaptations are traits giving an organism an advantage to survival & reproduction in a certain environment. –Variation of individuals is important for a healthy species.

6. 1.1 The Study of Life Living things can grow, develop, and reproduce. –Creation of new cells –Transfer of genetic material (DNA)