Limits to Growth

What is the role of limiting factors in an environment?

• They increase the birth rate of species.

• They determine the carrying capacity of an environment for a species.

• They eliminate competition among species.

• They prevent the spread of diseases.

Which is an example of a density-independent factor?

• Disease

• Predation

• Competition

• Usual weather

What can result from stress due to overcrowding in a population?

• Increased birth rates

• Higher emigration rates

• Faster spread of natural disasters

• More available resources

How do density-independent factors differ from density-dependent factors?

• They only affect large populations.

• They are influenced by the population's genetic variation.

• They affect all populations regardless of size and density.

• They are dependent on the availability of resources.

What limits the growth of populations?

• Unlimited resources

• Absence of predators

• Limiting factors

• Genetic diversity

What factor can cause lower birth and higher death rates in populations?

• Abundant resources

• Overcrowding stress

• Increased competition

• Stable environments