Density dependent and independent factors

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

• Density-Dependent

• Density-Independent

An extensive drought in the plains threatens wildebeest, giraffe, zebra, and springbok populations.

• Density-Dependent

• Density-Independent

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

• human activities

• unusual weather

• competition

• natural disaster

When a specific population grows past the ecosystem's carrying capacity, what happens to the population?

• Density Independent limiting factors start to occur resulting in the population going farther above carrying capacity.
• Density Dependent limiting factors start to occur resulting in the population going back below carrying capacity.
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

What is the carrying capacity of the graph?

• around 500
• more than 500
• less than 500
• around 600

What is the carrying capacity of the following graph?

• 1000
• 8000
• 800
• 600

The total number of individuals a habitat can survive with the resources it has available.

• Carrying capacity
• Limiting factors
• Resources
• Population

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

• Stays the same
• Increases
• Decreases
• Fluctuates

Limiting factors which impact the size of a population no matter how large that population is.

• Density Independent Limiting Factors
• Density Dependent Limiting Factors
• Carrying Capacity
• Exponential Growth

A lion and a cheetah attempt to occupy the same niche. The more aggressive lion survives; the cheetah does not.

• Density-Dependent: Competition

• Density-Independent: Competition

• Density-Dependent: Predator-Prey

• Density-Independent: Predator-Prey