Levels of organization in plants and Animals / Cell Theory

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Group of same type of cells

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Tissue

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Group of different tissues

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an organ

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Levels of organization (simplest to complex)

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Cells, tissues, organs, organ systems, organism

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Tissues = cells with same function

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Correct statement about tissues

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Correct statement about organs

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An organ is created by a group of tissues with the same function.

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Basic unit of life

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Cell

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Cell Theory Statements

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1. All living things are composed of cells 2. Cells are the smallest units of life 3. Living cells arise from other living cells

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First observation of cells by Robert Hooke

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Cork

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Cell Theory: All cells from preexisting cells

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True statement about cell theory

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All organ systems working together

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organism