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Science Extra Credit

                                                                 Keira Dempsey
An organism, usually an animal, that feeds on plants or other animals.
The surroundings or conditions in which a person, animal, or plant lives or operates.
Any organism that exists by preying upon other organisms.
Is an association of populations of two or more different species occupying the same geographical area and in a particular time
The process by which carbon dioxide, water, and salts are converted into carbohydrates by plants, and bacteria, using energy from the sun and chlorophyll.
The natural environment of an organism; place that is natural for the life and growth of an organism.
The living together of two dissimilar organisms.
Organisms having some common characteristics or qualities.
A form of life; plant or animal.
Things that organisms need to survive; food, water, climate and disease.
A relationship between two species of a plant, animal, fungus, etc., in which one lives with, on, or in another without damage to either.
A group of interconnected elements, formed by the interaction of a community of organisms with their environment.
A relation between organisms in which one lives as a parasite on another.
The envelope of gases surrounding the earth or another plant.
A relationship between two species of organisms in which both benefit from the association.
Organisms that can make their own energy through biochemical processes.
An animal that feeds on plants.
Characterized by the absence of life or living organisms.
Pertaining to life.
An animal or person that eats food of both plant and animal origin.