Question 1

The amount of land needed to meet a person's resource and waste demands is called an ecological footprint. True or False?

Accepted Answer

This statement is true. An ecological footprint is a measure of the amount of land required to not only provide the resources a person consumes but also to absorb the waste they generate.

Question 2

Density-dependent factors become less effective as the population size increases. True or False?

Accepted Answer

Density-dependent factors become more effective as the population size increases because they are influenced by the number of individuals in a given area, such as competition for resources, predation, and disease.

Question 3

All the members of a species that live in a specific geographic region form a(n)________.

Accepted Answer

The answer of All the members of a species that...

Question 4

The sum of all factors that limit the ability of a population to grow is known as ________.

Accepted Answer

The answer of The sum of all factors that limit...

Question 5

Prey, such as lemmings, may have a density-dependent effect on predator populations, such as those of the snowy owl, by enabling the predator to increase the number of its offspring at high prey densities. True or False?

Accepted Answer

When prey populations are dense, predators are more likely to have access to prey and can thus sustain reproduction and increase their offspring numbers.

Question 6

All the areas of Earth that support life make up the ________.

Accepted Answer

The answer of All the areas of Earth that support...

Question 7

In the equation "population growth = r × N," the letter r stands for ________.

Accepted Answer

The answer of In the equation "population growth = r...

Question 8

The ________ of a population is the maximum rate at which a population could increase.

Accepted Answer

The answer of The ________ of a population is the...

Question 9

Humans are classified as a late-loss population. True or False?

Accepted Answer

Humans are classified as a late-loss population, which means they have a long lifespan and typically do not experience significant mortality until late in life.

Question 10

Increased population densities and increased competition lead to increased emigration. True or False?

Accepted Answer

As competition for resources increases, individuals may choose to leave the area in search of better opportunities elsewhere, leading to increased emigration.

Question 11

Within their territory, pack animals like wolves exhibit a uniform distribution. True or False?

Accepted Answer

Pack animals like wolves exhibit a clumped distribution within their territory.

Question 12

When resources are limited but spread evenly throughout a region, plants are likely to form a uniform distribution pattern. True or False?

Accepted Answer

When resources are evenly distributed, each plant has equal access to them and thus can grow in a uniform pattern.

Question 13

Natural populations cannot exceed their carrying capacities. True or False?

Accepted Answer

Natural populations can temporarily exceed their carrying capacities due to factors like resource abundance, but this often leads to a population crash or decline as resources become limited.

Question 14

The human population currently shows a J-curve growth pattern. True or False?

Accepted Answer

The human population is currently experiencing a J-curve growth pattern, meaning it is increasing rapidly without any sign of stabilizing or decreasing.

Question 15

Deforestation increases the productivity of land. True or False?

Accepted Answer

Deforestation removes trees that are essential for maintaining healthy soil and water systems, and reduces the amount of organic matter available to support plant growth. This can lead to reduced productivity of the land over time.

Question 16

In a constant-loss population, an organism has an equal risk of dying at any time during its life span. True or False?

Accepted Answer

In a constant-loss population, organisms have an equal risk of dying at any time during their life span. This means that the probability of dying at any given moment does not increase or decrease with age, and there is no specific life stage during which mortality risk is particularly high.

Question 17

The United States has the lowest replacement-level fertility of the developed countries. True or False?

Accepted Answer

The United States does not have the lowest replacement-level fertility among developed countries; other countries, such as South Korea and Japan, have lower fertility rates.

Question 18

In a stable population with neither immigration nor emigration, the replacement-level fertility is one child per woman. True or False?

Accepted Answer

Replacement-level fertility is typically about 2.1 children per woman in developed countries, accounting for child mortality and ensuring population stability.

Question 19

A measure of the ability of a population to grow under ideal circumstances is its ________.

Accepted Answer

The answer of A measure of the ability of a...

Question 20

In a maple forest in the spring, the ground is often covered with young maple seedlings, which compete for light and nutrients. By fall, most of the seedlings have died, leaving only a few survivors. This is an example of ________ competition.

Accepted Answer

The answer of In a maple forest in the spring,...

Quiz 26: Population Growth and Regulation