study guide bio exam

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4 Terms

1
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What are the key characteristics shared by all living things?

All living things share these key traits:

  • Organization (cell is the basic unit)
  • Metabolism (requires energy)
  • Homeostasis (maintains internal balance)
  • Growth & development
  • Response to stimuli
  • Reproduction
  • Adaptation & evolution
2
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List the levels of biological organization from smallest to largest.

From smallest to largest:

  1. Atom
  2. Molecule
  3. Cell
  4. Tissue
  5. Organ
  6. Organ System
  7. Organism
  8. Population
  9. Community
  10. Ecosystem
  11. Biosphere
3
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What are emergent properties in biology?

Emergent properties arise at each level of biological organization due to interaction among components.

4
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Define Evolution.

Evolution is the change in the genetic makeup of a population over time.