Unit 4.4 - Limiting Factors, Survival and Growth

What is an Abiotic Factor?

• A NON-living factor that can affect an ecosystem

• A living factor that can affect an ecosystem

• The carrying capacity of an ecosystem

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Check all of the boxes that show examples of biotic factors.

• Rain

• Humans hunting

• Predators

• Wildfire

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Check all of the boxes that are examples of abiotic factors.

• Prey

• Rainfall

• A pack of wolves

• A tornado

If there was a wildfire in the forest that destroyed the plant life, what would happen to the herbivore population?

• Herbivores would decrease due to a lack of food

• Herbivores would increase due to an increase of food

• Herbivores would not be affected

• Herbivores would decrease due to an increase in predators

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What is a limiting factor?

• Factors that always increase a population

• Factors that always decrease a population

• Resources that are unlimited

• Factors/resources that limit how many organisms can live in an area at the same time

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Organisms need ​​ (a)   to live and survive.

• space and resources
• space
• resources
• cheese burgers

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What does the carrying capacity of a population show?

• How many organisms live in the ecosystem

• The maximum number of organisms that an ecosystem can support for a long period of time

• The minimum number of organisms that can live in an area

• The types of organisms living somewhere

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What happens if a population goes over its carrying capacity?

• It will continue to grow

• It will eventually decrease due to a lack of resources

• It will die immediately

• It will get unlimited resources

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What is the carrying capacity of the following graph?

• 1000
• 8000
• 800
• 600

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If the amount of food or resources available increases, the carrying capacity for an animal:

• Stays the same
• Increases
• Decreases
• Fluctuates

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