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LS ECOLOGY 1
Interactions with Life
Term | Definition |
---|---|
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. |