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Cells & Living Organisms Review

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    Cells, characteristics of living things
  •   Study   Slideshow
  • What are cells?
    The smallest unit of living organisms. Cells make up everything that is ALIVE!
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  • What is an 'organelle'?
    A "tiny organ". These are the working parts inside of a cell, much like our organs.
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  • What is the "brain" of the cell, that controls all other activities?
    Nucleus
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  • What is the "powerhouse" of the cell that produces energy?
    Mitochondria
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  • What is a multicellular organism? Give an example.
    An organism made of more than one cell. Plant, animal
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  • What is a unicellular organism? Give an example.
    An organism made of only one cell. Bacteria
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  • How many characteristics of living things are there?
    7
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  • We know that an organism is living if it can _________________ to create new offspring.
    reproduce
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  • We know that an organism is living if it performs excretion. What is excretion?
    Getting rid of waste
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  • We know an organism is living if it respires. What does it mean to respire?
    Exchange gases
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  • We know an organism is living if it can adapt to its environment. What does it mean to adapt?
    To change or adjust to the environment to maintain life.
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  • What is homeostasis?
    Balance, the state of being "stable"
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  • What is an autotroph?
    An organism that can make its own food, such as a plant.
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  • What is a heterotroph?
    An organism that must consume food, such as an animal or human.
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  • Chloroplasts are organelles found in plant cells that convert sunlight into energy. This process is called __________________.
    photosynthesis
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  • Name at least FOUR basic needs of all living organisms.
    Food, water, shelter, air, sunlight
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