Ch.3 Practice Test

Which of the following lives in a prairie ecosystem?

• grass

• mushroom

• oak tree

• woodpecker

Which of the following is a biotic factor?

• temperature

• sunlight

• bacteria

• water

Which of the following lists the levels of an ecosystem in order from largest to smallest?

• population, organism, community, ecosystem

• ecosystem, community, organism, population

• organism, community, population, ecosystem

• ecosystem, community, population, organism

An organism gets food, water, shelter, and other things it needs to live, grow, and reproduce from its

• population

• habitat

• abiotic factors

• species

The size of a population increases if the number of individuals added to the population is equal to the number of individuals leaving the population.

• True

• False

Immigration means moving out of a population.

• True

• False

Three coyotes per square kilometer is an example of population density.

• True

• False

If foxes arrive in an area and catch and eat a large number of rabbits, the foxes are causing an increase in the birth rate of the rabbit population.

• True

• False

Sunlight can be a limiting factor for populations of plants.

• True

• False

Water and food are examples of _______________ for populations.

• Limiting factors

• Resources

• Habitat

• Predators