Unit 4 - Topic 1 - Bobcats and Bunnies...

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

• carrying capacity

• emigration

• immigration

• population density

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

• a limiting measure

• a limiting factor

• carrying capacity

• biodiversity

What are factors that affect carrying capacity?

• Biotic only

• Biotic and abiotic

• Depends on the ecosystem

• Abiotic only

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What is the carrying capacity of the graph?

• 1000

• 8000

• 800

• 600

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What is the carrying capacity of the graph?

• around 500

• more than 800

• less than 300

• around 700

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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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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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A cactus

• Biotic factor

• Abiotic factor

Air

• Biotic factor

• Abiotic factor

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