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Select the deep sea ecosystem.

This ecosystem has:
- daily
flooding and draining of seawater - water
that is rich in nutrients - many
different types of organisms

"Dense mass of anomuran crab" by A. D. Rogers et al. / CC BY- SA 2.5
This ecosystem has:
- water
at the bottom of the ocean - no
sunlight - organisms
that crawl or stick to the ground
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