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29 Cards in this Set

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Abiotic
Describes nonliving factors in the environment
nonliving
Biosphere
The part of the earth where life lives
contains life
Biotic
Describes living factors in the environment
living
Carnivore
A consumer that eats animals
predator is an example
Carrying Capacity
The largest population that a given environment can support over a long period of time
Crowded when exceeded
Coevolution
The long term changes that take place in two species because of their close interaction with one another







Ants and acacia trees


Commensalism
A symbiotic relationship where one organization benefits and the other is unaffected
The remora and the shark
Community
All of the population of different species that live and interact in the same area
Salt Marsh
Competition
Two or more species of individuals trying to use the same limited resource
Squirrels and Birds at a feeder
Consumer
An organism that eats producers or other organisms for energy
Cannot use sunlight energy directly
Decomposer
An organism that gets energy by breaking down the remains of dead organisms or animal waste and consuming or absorbing the nutrients
Bacteria and Fungi
Ecology
The study of the interaction between organisms and their environment
The web of life
Ecosystem
A community of organisms and their non-living environment
Biotic and Abiotic living together
Energy Pyramid
A diagram shaped like a triangle that shows the loss of energy at each level of the food chain
The amount of energy is smaller at the top
Food Chain
A diagram that represents how the energy in food molecules flows from one organism to the next
Energy moves in one direction
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