Population Practice Test

Question 1

which of the following best describes a popualtion

Answer 1

members of the same species living in the same place at the same time

Question 2

identify the population graph

Answer 2

exponential

Question 3

what type of population growth is represented by this graph

Answer 3

logisitic

Question 4

if a population grows larger than its carrying capacity, the

Answer 4

death rate must increase

Question 5

these are

Answer 5

dispersion patterns

Question 6

what is represented by this graph (limiting factor)

Answer 6

range of tolerance

Question 7

developing countries tend to have a what shaped age structure diagram

Answer 7

pyramid like

Question 8

Populations whose age structure diagrams are narrower at the bottom than at the top have

Answer 8

declining population

Question 9

A biologist marks 20 grasshoppers with paint are releases them. She then recaptures (over several trials) 200 grasshoppers, 50 of which are marked. Estimate the population size using the Lincoln Index.

Answer 9

80

Question 10

based on birth rates and death rates, in which stage of demographic transition is the population growth rate the greatest?

Answer 10

2

Question 11

maximum ability to produce offspring in ideal conditions

Answer 11

biotic potential

Question 12

The largest population size that a given environment can support sustainably

Answer 12

carrying capacity

Question 13

Factors such as competition for food and spread of disease

Answer 13

density dependent limiting factors

Question 14

Thomas _______ predicted that the human population would grow faster than the resources needed to sustain the population can be produced.

Answer 14

Malthus

Question 15

The total fertility rate (TFR) is an estimate of

Answer 15

the number of children each woman in a population will have on average

Question 16

Population growth rates are high in developing countries because…

Answer 16

children are often an important economic advantage.

Question 17

Using the rule of 70, a population growing at a 5% growth rate would double in size in

Answer 17

14 years

Question 18

A particular country has a Total Fertility Rate equal to replacement level fertility and emigration equal to immigration. Which of the following must be true?

Answer 18

The population must be stable.

Question 19

Which of these describes a K-selected species?

Answer 19

stable populations, produce small numbers of offspring that are larger and receive parental care

Question 20

Which of the following is true of the demographic transition model as a country transitions to industrialization?

Answer 20

the death rate drops, followed by a drop in birth rates

Question 21

According to the theory of demographic transition, the most rapid population growth occurs during phase

Answer 21

2

Question 22

According to the theory of demographic transition, the highest birth rates and death rates are likely to occur during phase

Answer 22

1

Question 23

Density-dependent factors are limiting factors whose effects are ___.

Answer 23

determined by the degree of competition for a resource

Question 24

A sample was taken in a field that measured 100 square meters to count the number of milkweed plants. It was divided into a 10 x 10 grid, and 5 sections were randomly selected to sample. The results were 2, 5, 1, 3, and 2 plants in the samples. Estimate how many milkweed plants are in this field.

Answer 24

260

Question 25

Calculate the population density for an area of 500 km2 with a population of 200 individuals.

Answer 25

0.4

Question 26

What is the replacement level fertility rate?

Answer 26

2.1

Question 27

In a human population, the population momentum effect is most likely to occur in cases in which a large percent of the people in a population are in which age group?

Answer 27

younger than 19 years old

Question 28

What is the birth rate (as a percentage) for a population of 950,000 people with 25,000 births?

Answer 28

2.63%

Question 29

A population of 744,700 people has 44,600 immigrants and 12,570 emigrants. They also experience 15,900 deaths and 35,670 births. Find the growth rate.

Answer 29

6.96%

Question 30

How many years will it take a population to double with a growth rate of 7%?

Answer 30

10 years

Question 31

Using the mark and recapture technique, a scientist collected 20 horseshoe crabs and marked them with a tag. The 20 marked crabs were then released back into the wild. The scientist returned later and recaptured crabs. They repeated the release and recapture process many times. The data is shown in the table. Estimate the population size using the Lincoln Index.

Answer 31

80