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habitat
A. the natural home of a plant or animal
B. the act of keeping something
C. an important event
D. a small space
diagnose
A. to find out what is wrong with someone
B. to cause a lot of disagreement
C. to obtain from a source
D. to use food to produce energy
species
A. a division of animals or plants
B. a group of young animals
C. a person or thing that comes after another
D. a branch where a bird rests
variation
A. a difference or change from the usual amount or form
B. a system of organization with ranks
C. an effort or attempt
D. something successful or impressive
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