7th and 8th grade earth science
Terms
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- Abiotic
- Describes nonliving factors in the environment
- Biosphere
- The part of the earth where life lives
- Biotic
- Describes living factors in the environment
- Carnivore
- A consumer that eats animals
- Carrying Capacity
- The largest population that a given environment can support over a long period of time
- Coevolution
- The long term changes that take place in two species because of their close interaction with one another
- Commensalism
- A symbiotic relationship where one organization benefits and the other is unaffected
- Community
- All of the population of different species that live and interact in the same area
- Competition
- Two or more species of individuals trying to use the same limited resource
- Consumer
- An organism that eats producers or other organisms for energy
- Decomposer
- An organism that gets energy by breaking down the remains of dead organisms or animal waste and consuming or absorbing the nutrients
- Ecology
- The study of the interaction between organisms and their environment
- Ecosystem
- A community of organisms and their non-living environment
- Energy Pyramid
- A diagram shaped like a triangle that shows the loss of energy at each level of the food chain
- Food Chain
- A diagram that represents how the energy in food molecules flows from one organism to the next
- Foodweb
- A complex diagram representing the many energy pathways in a real ecosystem
- Herbevore
- A consumer that eats plants
- Limiting Factor
- A needed resource that is in limited supply
- Mutualism
- A symbiotic relationship in which both organisms benefit
- Niche
- An organism's way of life and its relationship with its abiotic and biotic environments
- Omnivore
- A consumer that eats a variety of organisms
- Parasite
- An organism that feeds on another living creature, usually without killing it
- Parasitism
- A symbiotic association in which one organism benefits while the other is harmed
- Population
- A group of individuals of the same species that live together in the same area at the same time
- Predator
- An organism that eats other organism
- Producer
- Organisms that make their own food, usually by using the energy from sunlight to make sugar
- Prey
- An organism that is eaten by other organism
- Scavenger
- An animal that feeds on the bodies of other dead animals
- Symbiosis
- A close, long term association between two or more species