How do populations changes affect ecosystems?

Raccoons eat aquatic animals. If chemicals entered the lake with rain water and destroyed the plants, how would this impact the raccoon population?

• Raccoons would have more aquatic animals to eat.
• Raccoons would begin eating land plants.
• Raccoons would have less aquatic animals to eat.
• Raccoons would only drink water.

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What happens if a population grows past its carrying capacity?

• The population keeps growing

• The population starts to die off

• The entire species will go extinct

• The carrying capacity just increases

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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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The largest number of individuals that an environment can support long term is...

• carrying capacity

• emigration

• immigration

• population density

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Something that regulates the size of a population is called...

• a limiting measure

• a limiting factor

• carrying capacity

• biodiversity

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Which of the following would INCREASE the carrying capacity of an ecosystem?

• increase in predators
• disease
• increase in available food
• drought

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Which of the following is a biotic factor that would affect the carrying capacity of a population?

• Soil

• Predator

• Rainfall

• Sunlight

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What are factors that affect carrying capacity?

• Biotic only

• Biotic and abiotic

• Depends on the ecosystem

• Abiotic only

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What is carrying capacity?

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

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

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

• Interdependent Relationship

• Carrying Capacity

• Competition

• Ecosystem

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