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Which of the following is an example of an abiotic limiting factor on population size?
water availability
Availability of food
disease
predation
Without other changes to a population, which of the following will cause a population to increase in size?
The birth rate equals the death rate.
The birth rate is less than the death rate.
The birth rate is greater than the death rate.
The birth rate and the death rate both equal 0.
Owls and snakes eat mice and other organisms. What would happen to the mice population if the owl population decreased?
The population would decrease, as the loss of owls as part of their diet is a limiting factor.
The population would decrease, as shelters created by owl nests is a limiting factor.
The population would increase, as competition for food is a limiting factor.
The population would increase, as predation by owls is a limiting factor.
Review the graph provided. What statements can be made about the significant decline in wolves around 1979?
The wolf decline was a direct result of moose decline.
The is no way to know why the wolf population dropped.
The drop is most likely due to the declining moose population, but more information would be needed to determine that.
The drop is most likely due to the increasing moose population, but more information would be needed to determine that.
The wolf decline was a direct result of the moose increase.
Review the graph provided. What statements can be made about the significant decline in moose in the mid 1990's?
The moose decline was a direct result of wolf decline.
The is no way to know why the moose population dropped.
The drop is most likely due to the declining wolf population, but more information would be needed to determine that.
The drop is most likely due to the increasing wolf population, but more information would be needed to determine that.
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