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Notes Unit 1B: Biology DCHS Biology TOPIC: LIFE Essential Question: What are the common characteristics of all living organisms? Outline Misconceptions about “living” things The 7 Characteristics of Life Organization Homeostasis Metabolism Respond to Stimuli Grow Reproduce Evolve Misconceptions about “living” things They _________ They have a _______ & ______________ They ______ Plants, yeast, and bacteria do none of these things and they are living organisms. Misconceptions about “living” things These misconceptions are characteristics of ______ living things “Characteristics of Life” must be applicable to _____ living things The 7 Characteristics of Life #1: ________________ Definition: Being made of one or more cells Examples: Skin cells, muscle cells, plant cells, a bacteria cell The 7 Characteristics of Life #2: _____________ Definition: Maintain- ing a steady internal state Example: Steady body temperature. Sweat & shiver to keep a temperature steady The 7 Characteristics of Life #3: _____________ Definition: All organisms must obtain & use energy Example: Energy from food, the sun. Use energy to move, grow, maintain homeostasis The 7 Characteristics of Life #4: _________ _____________ Definition: Behavior is influenced by the environment Example: Capturing prey, running from predator, avoiding the heat or cold The 7 Characteristics of Life #5: _______ Definition: increase in size in a structured way Example: Grow more cells, increase in height, increase in size The 7 Characteristics of Life #6: ______________ Definition: production of new individuals by existing individuals Example: Babies! Plants produce seeds, a single bacteria cell divides into two cells The 7 Characteristics of Life #7: ___________ Definition: The ability to adapt and survive; Darwin’s survival of the fittest Example: The smartest, fastest, best adapted organisms will live and reproduce Summary of Living vs Non-living: