Lesson 7 Abiotic Limiting Factors

Multiple Choice

Why are limiting factors important in maintaining a healthy ecosystem?

• They prevent overpopulation and resource depletion.

• They increase the number of predators.

• They eliminate all abiotic factors.

• They stop all population growth.

Fill in the Blank

A species with a wide tolerance range can live in a variety of ___ .

Multiple Choice

In aquatic ecosystems, which abiotic factor can be increased by salting highways and irrigation?

• Acidity

• Salinity

• Temperature

• Light availability

Multiple Choice

Which of the following is an example of a limiting factor in an ecosystem?

• Availability of water

• Unlimited food supply

• Absence of predators

• Unlimited space

Multiple Choice

Which of the following is NOT a limiting factor that can restrict the size of a population?

• Predation

• Parasitism and disease

• Photosynthesis

• Competition