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Ecosystem crossword puzzle

Across
A person or thing that eats or uses something
A living thing
A particular area or place considered together with its inhabitants
The part of the earth's crust ,waters and atmosphere that support life
An organism that decomposes organic material
Someone or something that eats plants and meat
Any class of organisms that occupy the same position in a food chain
A life form
All the inhabitants of a particular town ,area ,or country
The draining away of water from the surface of an area or land
O0f or characterized by the absence of life or living organism's
An animal that feeds on plants
A shallow recess especially one in a wall to display a statue or other ornament
The coming of one person or after another in order
Down
The total mass of organisms in given area or volume
Consumes dead matter scavengers leave behind
A meat eating animal; ex: bear
Interacting between two different organisms living in close physical association typically to the advantage of booth of them
Diversity among and within the plant and animal species in a environment
No longer in existence
An organism that feeds on dead organic matter
A community of organisms together in there physical environment
A total number of organism's in a country , city , or of a area
A living organism who produces
A series of organisms interrelated in their feeding habits ,the smallest being feed upon the larger one
The natural environment of an organism
A system of interlocking and independent food chains