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Vocabulary Contract

Across
The base of the ecological pyramid
An organism that gets nutritional needs from complex organic substances
An individual plant, animal, or single-celled life form
A group of organisms that can produce offspring
An organism that feeds on primary producers
Shows bioproductivity of each trophic level in a given ecosystem
Large group of ecosystems that share the same climate and have the same type of communities
Able to produce own food from inorganic substances
Organism that feeds on dead organic material
An animal that feeds on plants
A biological community of all the abiotic factors that affect it
Down
An organism that decomposes organic material by releasing digestive enzymes
Organisms that eat both plants and animals
Eats primary and secondary consumers
Not derived from living organisms
The movement of energy through a food chain
Earliest known form of life on Earth
Organism that eats animals
Made of, or relating to, living organisms
The part of Earth occupied by living organisms
A group of interacting populations that occupy the same geographic area at the same time