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Science

Vocabulary

TermDefinition
Parasitisum A relationship between two species in which one species the parasite, benefits from the other species, the host which is harmed.
Competition Ecological relationship in which two or more organisms depended on the same limited resources.
Photosynthesis The process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food.
Chlorphyll A green pigment that captures light energy for photosynthesis.
Cellular Resperation The process by which cells use oxygen to produce energy.
Predator An organism that kills and eats all or part of another organism.
Prey An organism that is killed and eaten by another organism.
Symbiosis A relationship in which two different organisms live in close association with each other.
Mutualism A relationship between two species in which both species benefit.
Commensalism A relationship between two organisms in which one organism benefits and the other one is unaffected.
Ecology The study of the interactions of living organisms with one another and with their environment.
Community All of the populations of species that live in the same habitat as each other.
Biotic Factor An environment factor that is associated with or results form the activities of living organisms.
Ecosystem A community of interacting organisms and their physical environment.
Abiotic Factor A environment factor that is not associated with the activities of the living organisms.
Habitat The place where an organism usually lives.
Populations A group of organisms of the same species that live in a specific geographic area.
Niche The role of a species in its community including its habitat relationships with other species.
Species A group of organisms that are closely related and can mate to produce fertile offspring.
Producer An organism that can make its own food by using energy from its surroundings.
Carnivore An organism that eats animals.
Decomposer An organism that gets energy by breaking down the remains of dead organisms or animal's waste.
Consumer An organism that eats other organisms or organic matter.
Food Chain The pathway of energy transfers through the various stages as a result of the feeding patterns of a series of organisms.
Herbivore An organism that eats only plants.
Food Web A diagram that shows the feeding relationship between organisms in an ecosystem.
Created by: 2098
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