WorksheetsChanges in Ecosystems
Total questions: 15
Worksheet time: 8mins
Relationship where one organism benefits but the other is harmed
competition
predation
mutualism
parasitism
commensalism
Relationship where both organisms benefit
competition
predation
mutualism
parasitism
commensalism
Relationship where one organism benefits and the other neither benefits nor is harmed
competition
predation
mutualism
parasitism
commensalism
___________ succession occurs when an area is re-colonized following a disturbance and soil remains.
primary
secondary
tertiary
Two organisms fight for the same resource
competition
predation
mutualism
parasitism
commensalism
What type of population growth does this graph represent?
exponential
logistic
carrying capacity
Density - _____________ factors are affected by the number of individuals; examples include competition, predation, and parasitism.
dependent
independent
One organism catches and eats another organism
competition
predation
mutualism
parasitism
commensalism
What type of population growth does this graph represent?
exponential
logistic
carrying capacity
__________________ is the maximum number of individuals an ecosystem can support.
exponential
logistic
carrying capacity
What are the four stages of ecological succession in order from the beginning to end?
pioneer, establishing, sustaining, producing
pioneer, establishing, producing, sustaining
producing, establishing, sustaining, producing
sustaining, pioneer, producing, establishing
Relationship where both organisms benefit
competition
predation
mutualism
parasitism
commensalism
Density- ______________ factors are environmental factors that limit a population’s growth; examples include weather events and human activities.
dependent
independent
___________ succession occurs when newly exposed rock is colonized for the first time (there is no soil).
primary
secondary
tertiary
The first plants that establish an area are known as ____________ species.
establishing
sustaining
pioneer
producing
