Limiting Factors

Limiting Factors

Open Ended

So, why doesn't this occur?

Multiple Choice

Limiting factors are sometimes helpful because they can keep the population from getting too large.

• True

• False

Multiple Choice

Any thing or organism that regulates the size of a population of another organism is known as __________.

• a limiting measure

• a limiting factor

• factorization

• materialization of precipitation

Multiple Choice

Coyotes cross the winter pack ice and enter Newfoundland. The moose population starts to decline.

• Density-Dependent: Competition

• Density-Independent: Competition

• Density-Dependent: Predator-Prey

• Density-Independent: Predator-Prey

Multiple Choice

A lion and a cheetah attempt to occupy the same niche. The more aggressive lion survives; the cheetah does not.

• Density-Dependent: Competition

• Density-Independent: Competition

• Density-Dependent: Predator-Prey

• Density-Independent: Predator-Prey

Multiple Choice

A snake is eaten by a hawk. The hawk is the _______.

• prey

• parasite

• predator

• all of these

Multiple Choice

An extensive drought in the Serengeti Plain threatens wildebeest, giraffe, zebra, and springbok populations.

• Density-Dependent

• Density-Independent

Multiple Choice

Fish on a coral reef stake out their territory and chase away any younger fish that try to live there.

• Density-Dependent

• Density-Independent

Multiple Choice

What will happen if all of the frogs in a population die?

• The frogs' predators will decrease and the frogs' prey will increase

• The frogs' predators will increase and the frogs' prey will decrease

• The frogs' predators will increase and they frogs' prey in increase.

• We better all pray because there isn't anymore frogs.

Multiple Choice

Which of the following would INCREASE the carrying capacity of an ecosystem?

• increase in predators
• disease
• increase in available food
• drought

Multiple Choice

Something that regulates the size of a population is called...

• a limiting measure

• a limiting factor

• carrying capacity

• biodiversity

Multiple Choice

The largest number of individuals that an environment can support long term is...

• carrying capacity

• emigration

• immigration

• population density

Multiple Choice

What happens if a population grows past its carrying capacity?

• The population keeps growing

• The population starts to die off

• The entire species will go extinct

• The carrying capacity just increases

Multiple Choice

What is the carrying capacity of the graph?

• 1000

• 8000

• 800

• 600

Multiple Choice

In a large Maine forest with many animals and lots of space, there are only a small number of bears. Which of these most likely limits the population of bears in the forest?

• cloud cover in the atmosphere

• space

• supply of food

• types of trees in the area

Multiple Choice

A scientist was studying a population of fish in a pond over a period of 10 years. He observed that

the population increased each year for 3 years, and then remained nearly constant for the rest of

the study. The best explanation for this observation is that the population had

• stopped reproducing

• reached carrying capacity

• mutated into a different species

• run out of food and all died

Multiple Choice

Ten breeding pairs of mink are introduced onto an island with no natural predators and a good supply of water and food. What will most likely happen to the mink population?

• It will remain relatively constant due to equal birth and death rates.

• It will die out.

• It will increase until it exceeds carrying capacity.

• It will decrease and then increase forever.

Multiple Choice

In a forest ecosystem, which of the following is NOT an example of a limiting factor that would greatly affect a rabbit population?

• a rainy season

• a disease that causes rabbits to die

• grass available to eat

• the population of hawks that eat rabbits