Biology 5.2 - Limits to Growth

1.

Multiple Choice

30 sec

1 pt

Population growth increases as resources _______

decrease

increase

stabilize

none of the other listed responses

2.

Multiple Choice

30 sec

1 pt

What is carrying capacity?

It occurs when resources are limited, thereby setting a maximum number an environment can support.

Accelerating growth pattern seen in species under conditions where resources are not limiting

Number of organisms added in each reproductive generation.

The maximum population size that an environment can support, without the habitat being destroyed.

3.

Multiple Choice

30 sec

1 pt

True or False: Exponential growth is possible only when finite natural resources are available.

True

False

4.

Multiple Choice

30 sec

1 pt

What is the characteristic shape of a curve illustrating logistic growth?

J-shaped

U-shaped

S-shaped

L-shaped

5.

Multiple Choice

30 sec

1 pt

If the major food source of the seals declines due to pollution or overfishing, which of the following would likely occur?

The carrying capacity would decrease, as would the seal population.

The carrying capacity would decrease, but the seal population would remain the same.

The number of seal deaths would increase but the number of births would also increase, so the population size would remain the same.

The carrying capacity would remain the same, but the population of seals would decrease.

6.

Multiple Choice

30 sec

1 pt

Which of these is a variable that causes a change in population size?

Births

Deaths

Emigration/Immigration

All of the above

7.

Multiple Choice

30 sec

1 pt

Population with unlimited natural resources grow very rapidly and then population growth decreases as resources become depleted. This acceleration pattern of increasing population size (phase 1) is known as?

Population Growth

Environmental Growth

Exponential Growth

Limited Growth

8.

Multiple Choice

30 sec

1 pt

The number of organisms added in each reproductive generation is known as?

Population Growth Rate

Carrying Capacity

Exponential Growth

Population Size

9.

Multiple Choice

30 sec

1 pt

The number of organisms that die in a particular time interval is known as?

Limited growth rate

Environmental decrease

Decrease population

Death rate

10.

Multiple Choice

30 sec

1 pt

Exponential growth may occur in environments where they are?

Few individuals and plentiful resources

Various individuals and plentiful resources

Few individuals and few resources

Various individuals and few resources

11.

Multiple Choice

30 sec

1 pt

The logistic model demonstrates?

The reality of an unlimited population

The reality of a limited population

The reality of limited resources

The reality of unlimited resources

12.

Multiple Choice

30 sec

1 pt

A specific species of fish is observed to undergo a sharp decrease in population due to interspecies competition. This would be classified as:

Density-dependent regulation

Density-independent regulation

Both density-dependent and density-independent regulation

Population regulation

13.

Multiple Choice

30 sec

1 pt

A forest fire is an example of __________ regulation.

Density-dependent

Density-independent

r-selected

K-selected

14.

Multiple Choice

30 sec

1 pt

Which of the following are incorrectly paired?

Density-Dependent : Diseases

Density-Independent : Weather

Density-Independent : Predation

Density-Dependent : Competition

15.

Multiple Choice

30 sec

1 pt

When organisms face limiting factors,

the death rate increases.

they have increased migration.

the birth rate decreases.

all of these can result

16.

Multiple Choice

30 sec

1 pt

Carrying capacity is reached

when birth rates and death rates become stable.

when there is not enough food.

as the population grows.

all of the above

17.

Multiple Choice

30 sec

1 pt

True or False: As the population increases, resource availability decreases.

True

False

18.

Multiple Choice

30 sec

1 pt

The type of population growth that occurs when limiting factors are present.

they have logistic growth.

they have exponential growth.

they have carrying capacity growth.

19.

Multiple Choice

30 sec

1 pt

What happens in the presence of abundant resources?

Population grows at minimal rates.

Populations grow at maximal rates.

Population rate is stable.

None of the above

20.

Multiple Choice

30 sec

1 pt

A disease is an example of _______ regulation.

A. Density-dependent

B. Density-independent

C. r-selected

D. K-selected

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