Limiting factors

If there is more food than usual in an ecosystem, then...

• Populations will stay the same
• Populations will decrease
• Populations will increase

 What is the name for this leveling off shown in the graph?

• logistic line
• carrying capacity
• climax point
• mediocre

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

• carrying capacity

• emigration

• immigration

• population density

What is the carrying capacity of the graph?

• 1000

• 8000

• 800

• 600

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

• a limiting measure

• a limiting factor

• carrying capacity

• biodiversity

What is the carrying capacity of the graph?

• around 500

• more than 800

• less than 300

• around 700

What causes competition to occur in an environment?

• Good conditions make resources plentiful.

• Organisms struggle for a limited resource.

• Members of a population have different roles.

• A population falls below the environment’s carrying capacity.

Many fish die due to a drastic change in water temperature.

• Density-Dependent

• Density-Independent

Which of the following is a density-dependent limiting factor?

• human activities

• unusual weather

• competition

• natural disaster

Which of the following is a density-independent limiting factor?

• natural disaster
• predation
• disease
• parasitism