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1. Explain properties of life… Biology A Wording 1. Cellular Organization 2. Metabolism 3. Homeostasis 4. Response to stimuli 5. Reproduce/Heredity 6. Growth & Development 7. Evolve AP Bio Wording 1. Order – All life is organized from simplest atoms to the organism. Example: Bacteria are unicellular and aren’t as complex as humans which have tissues and organs. 1. Explain properties of life… Biology A Wording 1. Cellular Organization 2. Metabolism 3. Homeostasis 4. Response to stimuli 5. Reproduce 6. Growth & Development 7. Evolve AP Bio Wording 2. Energy Processing – Energy is transferred from 1 form to another form in living things. Example: Trees do photosynthesis and convert light energy to chemical energy. 1. Explain properties of life… Biology A Wording 1. Cellular Organization 2. Metabolism 3. Homeostasis 4. Response to stimuli 5. Reproduce 6. Growth & Development 7. Evolve AP Bio Wording 3. Homeostasis– Living things can maintain internal conditions. Example: When hot, dogs sweat to cool themselves down. 1. Explain properties of life… Biology A Wording 1. Cellular Organization 2. Metabolism 3. Homeostasis 4. Response to stimuli 5. Reproduce 6. Growth & Development 7. Evolve AP Bio Wording 4. Response to the environment– Living things will respond to stimuli in the outside world. Example: Plants will grow toward the light. 1. Explain properties of life… Biology A Wording 1. Cellular Organization 2. Metabolism 3. Homeostasis 4. Response to stimuli 5. Reproduce 6. Growth & Development 7. Evolve AP Bio Wording 5. Reproduction– Living things are capable of producing like organisms at some point in their life cycle. Example: Birds will lay eggs that will hatch into baby birds. 1. Explain properties of life… Biology A Wording 1. Cellular Organization 2. Metabolism 3. Homeostasis 4. Response to stimuli 5. Reproduce 6. Growth & Development 7. Evolve AP Bio Wording 6. Growth & Development – Living things grow (increase in cells) and develop into adults. Example: Babies get bigger and become adults. 1. Explain properties of life… Biology A Wording 1. Cellular Organization 2. Metabolism 3. Homeostasis 4. Response to stimuli 5. Reproduce 6. Growth & Development 7. Evolve AP Bio Wording 7. Evolutionary Adaptation– Living things evolve by adapting to their environments. Example: Peppered Moth population turned more black in color due to the industrial revolution. 2. Evidence that life had a single origin • The properties of life – All life shares these properties which leads us to the conclusion that there is one common ancestor for all living things. 3. Timeline and Significance a. Age of Earth - ~4.6 billion years ago Significance – Allows scientists to date fossils b. Chemical Evolution - ~3.8 billion years ago Significance – Allows proteins and nucleic acids to form, which is part of life 3. Timeline and Significance a. Evolution of Cellular Structure and Prokaryote Cell - ~3.5 billion years ago Significance – Allowed first reproducing cellular organisms to form b. Photosynthesis - ~2.7 billion years ago Significance – Provided oxygen and allowed life to move on land 3. Timeline and Significance a. Appearance of Eukaryotes and Multicellularity- ~3.5 billion years ago Significance – Allows specialized cellular functions to be performed away from the rest of the cell and Allowed specialization of tissues 4. Why is classification of living organisms necessary to understanding biology? • There are tens of millions of species that exist on Earth • Giving each a name allows for organization and to compare for an evolutionary context. 5. What are the 3 domains? What are the major groups of eukaryotes? Domains Groups of Eukaryotes 1. Archaea – unique prokaryotes 2. Bacteria – regular prokaryotes 3. Eukarya - eukaryotes 1. 2. 3. 4. Plants Fungi Animals Protists 6. What are the origins of chloroplasts and mitochondria in eukaryotes? • They originated by endosymbiosis – when larger cell’s ingest smaller ones. – Mitochondria probably evolved from engulfed prokaryotic organisms – Chloroplasts probably evolved from engulfed photosynthetic prokaryotes