Carrying Capacity

What is the carrying capacity of the graph?

• 1000

• 8000

• 800

• 600

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This may cause a population to increase

• increase of food supply

• removal of predators

• removal of disease

• all of these

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If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

• The bird population would stay the same
• The bird population would infinitely increase
• The bird population would decrease

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If the carrying capacity of a predator decreases, what will happen to the carrying capacity of the prey?

• Will Increase

• Will Decrease

• Will stay the same

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The largest number of individuals that an area can support is called its _______.

• limiting factor
• abiotic factor
• resource availability
• carrying capacity

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The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

• It will decrease.

• It will increase.

• It will remain the same.

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A scientist was studying a population of fish in a pond over a period of 10 years. He observed that

the population increased each year for 3 years, and then remained nearly constant for the rest of

the study. The best explanation for this observation is that the population had

• stopped reproducing

• reached carrying capacity

• mutated into a different species

• run out of food and all died

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What is interdependent relationship?

• A condition that occurs when two or more organisms compete for the same resources within an ecological community

• All the biotic and abiotic factors and the interactions among them in a given area

• The maximum number of organisms an ecosystem can support

• A relationship in which two organisms are mutually dependent on each other for survival

What occurs when ecological niches overlap and multiple organisms seek the same resources?

• Symbiosis

• Mutualism

• Competition

• Predation

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Which statement best describes the predator-prey relationship displayed on this graph?

• There is no relationship between the predator and prey.

• When the prey population increases, the predator population decreases.

• When the prey population increases, the predator population increases.

• when the predator population increases, the prey population increases.

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