Unit 11 Vocab: Ecology

symbiotic relationship where one organism benefits and the other is unaffected

• Commensalism

• Trophic Level

• Hypothesis

2 or more organisms using the same limited resources causing some organisms to be unable to access the resources

• Competition

• Ecosystem

• Predation

changes in the composition of species found in a community over time

• Ecological succession

• mutualism

• predation

community interacting with its environment through a one-way flow of energy and the cycling of materials

• ecosystem

• mutualism

• trophic level

ability of an ecosystem to return to a state of equilibrium following a disturbance

• ecosystem stability

• competition

• hypothesis

tentative and testable statement that must be capable of being supported or not supported by evidence

• hypothesis

• predation

• commensalism

symbiotic relationship where BOTH organisms benefit

• mutualism

• ecosystem

• predation

symbiotic relationship where ONE organisms BENEFITS while the OTHER organism is HARMED.

• parasitism

• competition

• trophic level

ecological relationship where one organism (predator) EATS the other organism (prey)

• predation

• hypothesis

• competition

position that organism(s) occupy in a food web, which is defined by its relationship to the primary energy source

• trophic level

• competition

• ecosystem