Question 1

What is a limiting factor?

Accepted Answer

A factor that limits the growth, distribution, or abundance of a population.

Answer

A factor that promotes the growth, distribution, or abundance of a population.

Answer

A factor that is completely unrelated to the growth, distribution, or abundance of a population.

Answer

A factor that is only important for plants, not for animals.

Question 2

Which of these is an example of a biotic limiting factor?

Accepted Answer

Competition for resources

Answer

Sunlight

Answer

Temperature

Answer

Soil nutrients

Question 3

Which of these is an example of an abiotic limiting factor?

Accepted Answer

Drought

Answer

Disease

Answer

Predation

Answer

Competition

Question 4

Which of these is a density-dependent limiting factor?

Accepted Answer

Disease

Answer

Temperature

Answer

Human development

Answer

Natural disaster

Question 5

Which of these is a density-independent limiting factor?

Accepted Answer

Natural disaster

Answer

Competition

Answer

Disease

Answer

Predation

Question 6

Which of these is an example of a limiting factor in a desert ecosystem?

Accepted Answer

Water availability

Answer

Abundant plant life

Answer

Humidity

Answer

Temperature

Question 7

What is the primary source of energy for most ecosystems?

Accepted Answer

Sunlight

Answer

Hydroelectricity

Answer

Geothermal heat

Answer

Wind

Question 8

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

Accepted Answer

Wind

Answer

Plankton

Answer

Fish

Answer

Algae

Question 9

What is an example of density-dependent population regulation?

Accepted Answer

Competition for resources such as food or nesting sites

Answer

Changes in weather patterns

Answer

Mutations in individuals in a population

Answer

Migration of individuals to new areas

Question 10

What is a density-dependent factor?

Accepted Answer

A factor that affects a population more strongly as population density increases

Answer

A factor that is not related to population density

Answer

A factor that affects a population more strongly as population density decreases

Answer

A factor that affects a population equally regardless of population density

Question 11

Which of the following is an example of a density independent factor?

Accepted Answer

a hurricane destroying a habitat

Answer

predation by a predator on a population

Answer

competition for food among members of a population

Answer

migration of individuals to a new area

Question 12

What is an example of a density independent factor that affects animal populations?

Accepted Answer

forest fires

Answer

predation by animals on other animals

Answer

migration of animals to new habitats

Answer

competition for mates among animals

Question 13

Abiotic means...

Accepted Answer

Non-living factors

Answer

Living factors

Question 14

Biotic means...

Accepted Answer

Living factors

Answer

Non-living factors

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