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Biology Scientific Method 2012 – 2013 #1 I. Biology = the study of life A. Characteristics of life 1. composed of cells -‐ unicellular = made up of a single cell -‐ multicellular = made up of many cells • a human is composed of billions of cells 2. capable of reproduction -‐ asexual reproduction = no mixing of genes -‐ sexual reproduction = mixing of genes 3. have a metabolism 4. maintain homeostasis = steady internal environment 5. heredity = pass genes to offspring -‐ mutation = damage to a gene 6. respond to the environment 7. grow and develop • Go to: http://www.pbs.org/wgbh/nova/tech/make-‐microbe.html Click on: Launch interactive
