Study

21st Century_Unit 6

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  • protection from harm
    preservation
  • helpful
    instrumental
  • attach firmly
    cement
  • something that blocks the way
    barrier
  • great in number or size
    massive
  • easily broken
    fragile
  • the areas in which animals live
    habitats
  • grow strong and healthy
    thrive
  • extremely valuable
    precious
  • groupings of living things
    species
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