1. BIOLOGY UNIT 1

2. CHARACTERISTICS OF LIVING THINGS

3. ORGANIZATION All living things have 1 or more cells. More complex organisms group their cells to increase the level of function. Cells Tissue Organ Systems Organism

4. REPRODUCTION 2 types: Asexual(Bacteria) and Sexual (Plants) Need to produce fertile offspring Prevent extinction

5. GROWTH and DEVELOPMENT Increase amount of material Differentiation-specialized cells and organs Metamorphosis (butterfly)

6. Obtain and Use Energy Obtain energy from environment Anabolism: synthesis (uses energy) Catabolism: break down (produces energy) Metabolism= Anabolism +Catabolism-sum total of energy production and usage What is the “Energy “ we keep referring to? ATP

7. Response to Environment STIMULUS- anything that causes organism to react Response- response to stimulus HOMEOSTASIS- regulation of an organism’s internal environment that is suitable to survival (ex. Sweating vs. shivering)