FINAL EXAM - STUDY GUIDE - REVIEW

An ecosystem is made up of what two types of things?

• Animals and plants

• Living and non-living things

• Water and soil

• Sunlight and air

What does it mean for a population to be stable?

• The population is increasing rapidly.

• The population is decreasing.

• The number of individuals in the population stays roughly the same.

• The population migrates to a new area.

True or False: A system can be stable even as things are being added to and removed from it.

• True

• False

What type of population is the population that gets eaten by others?

• Producer population

• Consumer population

• Decomposer population

• Predator population

What is a consumer population?

• A group of organisms that produce their own food.

• A group of organisms that rely on other organisms for food.

• A group of organisms that break down dead materials.

• A group of organisms that live in water.

What is the best definition of an organism?

• Many individuals of the same species living in the same area.

• All of the living and nonliving things in a particular area.

• An individual plant, animal, fungus, or single-celled life form.

• A creature that is large enough to see without using a microscope.

Why do organisms need energy storage molecules?

• To reproduce

• To grow

• To store nutrients

• All of the above

True or False: The less energy storage molecules available to a population, the more the organisms within the population can reproduce.

• True

• False

If the resource population decreases, what will likely happen to the consumer population?

• It will increase.

• It will decrease.

• It will remain stable.

• It will migrate.

If the consumer population decreases, what will likely happen to the resources population?

• Increase

• Decrease

• Remain the same

• Become extinct