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Unit 1: Life in the Marine Ecosystem

Help me review the materials that I need to know for my test on Friday March,16.
1) Sonar : a sound wave is sent, or emitted, from the bottom of the ship to the seafloor.
2) Echo : a sound that is sent back to the ship.
3) Ecosystem : a biological community of interacting organisms and their physical environment.
4) Biotic : living things ex: humans, dogs, cats, plants
5) Abiotic : non-living things ex: rocks, sand, pavement
Created on: 3/12/2019
# of cards: 15

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