1. Anything that possesses all the characteristics of life is an organism There is Unity within Diversity What does this mean?

2. All living things are made of cells are highly organized as individuals use energy constantly grow and develop have an expected life span reproduce themselves respond to stimuli adapt to their environment 3. 1. What is meant by there is unity within diversity? 2. What is an organism? 3. List 6 of the 8 characteristics of life. (Bonus: give all 8) 4. The Cell Theory The cell is the basic unit of life Cells come from pre- existing cells 5. Organisms can be Unicellular Multicellular Colonial 6. Unity Chemical make-up Plasma membrane Cytoplasm DNA Diversity ~300 different kinds in humans Examples? Prokaryotic vs. Eukaryotic 7. Organisms are organized! How? Chemical coordination Ex/ enzymes, neurotransmitters, hormones Structural coordination Specialized parts to perform specialized functions Examples? Division of Labor 8. Where does the energy come from? How is the energy obtained? 9. From Greek autos = self trophe = nourishing Autotrophs are producers Photosynthesis Chemosynthesis 10. From Greek Heteros = another or different Heterotrophs are consumers 11. Once energy is obtained it is stored for later use. Metabolism the sum of all the chemical reactions that occur in cells that provide or use energy 12. The construction of molecules from smaller units Think baseball 13. The breakdown of molecules into smaller units to release energy Think catastrophic 14. The balance between anabolism and catabolism helps to maintain homeostasis Environmental flux vs. Inner state How else is homeostasis maintained? 15. Growth by assimilation Step 1: intake of nutrients or molecules Step 2: alteration of substances Step 3: implementation of newly formed organic compounds How is this accomplished in plants? Animals? 16. What is the purpose of growth??? 17. Beginning Growth Development Maturity Decline Death 18. Sexual reproduction 2 cells each donate of their genetic information Asexual reproduction 1 cell donates the complete genetic code 19. Alternation of generations The organism cycles between sexual and asexual reproduction All plants and some animals