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“Don’t judge me by my desk. I’m actually very organized.”

“Don’t judge me by my desk. I’m actually very organized.”. Organization in Living Things. A Return To Cell Theory. What is the principle unit of life?. The CELL!. Remember: All living things are made of cell (or cells). Define CELL.

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“Don’t judge me by my desk. I’m actually very organized.”

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  1. “Don’t judge me by my desk.I’m actually very organized.” Organization in Living Things

  2. A Return To Cell Theory What is the principle unit of life? The CELL! Remember: All living things are made of cell (or cells).

  3. Define CELL A group of organelles working together to carry out life processes

  4. From one to ten trillion cells • Single-celled organisms = UNICELLULAR Some examples? • More-than-one-celled organisms = MULTICELLULAR Examples?

  5. TISSUES Groups of cells working together to carry out life processes are called…. No. Not that kind of tissue

  6. These kinds of tissues: • Epithelial: Cover inner and outer surfaces. • Muscle: Contract and relax for transport • Connective: bone, cartilage, blood; hold you together • Nervous: Transmit electrical “signals”

  7. ORGANS Groups of tissues working together to carry out life processes are called… No. Not that kind of organ

  8. These kinds of organs: • Stomach: mash food, digest proteins and distract you during Biology class • Brain: What’s being distracted right now. • Leaves: Absorb sunlight and make food for plants. Yes, plants have organs too!

  9. See the trend yet?

  10. ORGAN SYSTEMS Groups of organs working together to carry out life processes Sorry, Couldn’t come up with a silly picture for this one. Just look at the sheet I’m handing out right now.

  11. ORGANISMS Groups of organ systems working together to carry out life processes

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