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LS ECOLOGY

Interactions with Life

TermDefinition
Biosphere The regions at and near the earth's surface that support life.
Ecosystem All of the living and nonliving parts of an environment.
Ecology The study of interactions that occur among organisms and their environment.
Population All the organisms of a species that live in an area at the same time.
Community All the populations of all species living in an environment.
Habitat The place in which an organism lives.
Limiting Factor Anything that restricts the number of individuals in a population.
Carrying Capacity The largest number of individuals of one species that an ecosystem can support.
Biotic Potential The highest rate of reproduction, under ideal conditions.
Producers Organisms that use outside energy source, like the sun, to produce energy-rich molecules.
Consumers Organisms that cannot make their own energy-rich molecules.
Carnivores Eat other animals.
Herbivores Eat plants
Omnivores Eat plants and animals
Decomposers Break down dead matter into simpler compounds.
Symbiosis Close, long-term interaction between two different biological species
Mutualism Symbiosis in which both partners benefit.
Endosymbiosis Symbiosis in which one member lives inside the other.
Exosymbiosis Symbiosis in which members live outside each other.
Commensalism Symbiosis in which one member benefits and the other is neither helped nor harmed.
Parasitism Symbiosis in which one member benefits and the other is harmed.
Amensalism Symbiosis in which one member is inhibited or obliterated and the other is unharmed.
Synnecrosis Symbiosis in which both members are harmed.
Niche Describes an organism's place in the environment: how it obtains food and shelter, finds a mate, cares for young, ensures safety and security.
Predator Consumer that captures and eats another consumer.
Prey The organism that is captured by the predator.
Created by: MrGross