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Ecology Crossword Puzzle

Across
Living things
All the populations of species that live in the same habitat and interact with each other.
A star looking organism that lives on the sea floor.
large algae growing in the sea floor.
The star of the movie "JAWS".
Down
Non- living things
a large naturally occurring community
An organism that makes its own food from the sun.
a system of interlocking and interdependent food chains.
When you put this organism against your ear, you can hear the ocean.
Tan colored dirt that is found on the beach.
a limbless cold-blooded vertebrate animal with gills and fins and living wholly in water.