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Ch. 1 - Life's Building Blocks

Key Ideas
• a cell is the smallest unit of life
• all living things are made of one or more cells
• groups of cells form tissues
• groups of tissues form organs
• groups of organs form organ systems
Vocabulary
bacteria - tiny one-celled living things
algae - tiny plant-like one-celled living things
similar - nearly the same

Resources
Learning Master 6
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