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Understanding the Characteristics of Life: Key Features of Living Organisms

Explore the fundamental characteristics that define life in this informative video. Discover how organisms, whether unicellular like bacteria or multicellular like blue whales, are made up of cells, exhibit organization, grow and develop, reproduce, respond to stimuli, require energy, maintain homeostasis, and adapt over time. Each characteristic plays a crucial role in the survival and evolution of living beings, forming the basis of biological study. Join us in understanding what it means to be alive!

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Understanding the Characteristics of Life: Key Features of Living Organisms

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Presentation Transcript

  1. First, a video! • http://www.youtube.com/watch?v=juxLuo-sH6M

  2. Characteristics of Life • Made of 1 or more cells • Displays organization • Grows and develops • Reproduces • Responds to stimuli • Requires Energy • Maintains homeostasis • Adapts/Evolves An organism is anything that has or once had all these characteristics

  3. 1. Made of one or more cells • Bacteria are unicellular meaning they are made of only one cell • The blue whale is multicellular meaning it is made of many cells

  4. 2. Displays Organization • Simple organization can be found within a single cell • Complex organization can be found in organ systems

  5. 3. Grows and Develops • Growth is an increase in mass or weight • Development is a change in abilities

  6. 4. Reproduces • Production of offspring (next generation) • Sexual reproduction is when genetic information is exchanged • Asexual reproduction is when the same genetic information is used to make a copy

  7. 5. Responds to Stimuli • A stimulus is a “cause” whereas a response is an “effect” • The internal environment is what is inside of an organism • The external environment is what is outside of an organism

  8. 6. Requires Energy • All living things need food in one form or another • A producer makes it own food • A consumer needs to eat to survive

  9. 7. Maintains Homeostasis • Homeostasis means maintaining its internal environment • An example of homeostasis is when you are too hot, you sweat

  10. 8. Adapts/Evolves • Adaptation and evolution does not happen within one generation or lifespan • An adaptation is any inherited (through genes) characteristic that results from changes to a species over time

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