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Relationships CC

Relationships and Population Dynamics CC

TermDefinition
Adaptation a process, change, method, characteristic or feature that an organism or species possesses, develops or evolves that suits/adjusts the organism to its environment to increase its chances of survival and reduce competition.
Competition the struggle/rivalry/fight between organisms to obtain a sufficient supply of a resource of limited quantity. Animals vie with each other for food, shelter and space, and plants vie for space, light, water and minerals.
Contest competition involves an active physical confrontation between two organisms, one wins e.g. two dogs fighting over a bone, one wins the bone.
Parasitism a relationship between two organisms where the parasite benefits and the host is harmed.
Population a group of organisms of the one species living in part of an ecosystem.
Predation the act, of some animals which capture and kill other animals for food.
Predator An animal that hunts, captures and kills other animals (prey) for food.
Prey An animal that is hunted and killed by another animal (predator) for food.
Scramble competition a struggle between organisms where each organism tries to acquire as much of the resource as possible, all get some of the resource e.g. an ivy plant and a pine tree may compete for light.
Symbiosis a biological relationship between two organisms of different species living together, or one within the other, in such a way as to benefit one or both of the organisms.
Qualitative study a study determining the presence/absence of a substance or organism in a sample or habitat.
Quantitative study a study determining the amount of a substance or number of an organism present in a sample or habitat.
Created by: Confey College
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