Biology · Geography

Population Dynamics

978 Questions

Explore key concepts in population dynamics through these practice questions. The focus is on demographic transition models, population pyramids, and life history theory. These topics are useful for general studies and biology exams.

Demographic transition theoryPopulation pyramidsMathematical growth modelsLife history theory

Population Dynamics Questions

Multiple choice population and how it changes human population ecology and environment zoology

What is the demographic transition of a society?

  1. Low birth rates and low death rates

  2. Low birth rates and high death rates

  3. High birth rates and low death rates

  4. High birth rates and high death rates

  5. High birth rates and high emigration
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Demographic transition of a society is the changing pattern of the population from high birth and death rates to the low birth and death rates over the time period. It indicates the economic changes in the particular region as the country develops from a pre-industrial to an industrialized one. Thus, the correct answer is option A.

Multiple choice population and how it changes human population ecology and environment zoology

The aggregate of process that determine the size and composition of any population is known as

  1. Population dynamics

  2. Population dispersal

  3. Population explosion

  4. Population density
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Population dynamics is a study of population. it includes size and age of a population, and also its composition. It considers these as dynamic systems. It also studies the biological environment affecting these dynamics.

So, option A is the correct answer.

Multiple choice population and how it changes human population ecology and environment zoology

Populations connected by dispersing individuals are called

  1. Demes

  2. Community

  3. Metapopulation

  4. Both B and C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Metapopulation is a group of populations that are separated by space but consist of the same species. It is a population in which individuals are spatially distributed in a habitat to two or subpopulations.
So the correct answer is 'Metapopulation'.
Multiple choice population and how it changes human population ecology and environment zoology

The Allee effect is described by

  1. Population growth increases as population density increases, below a certain density.

  2. Population growth increases as population density increases, above a certain density.

  3. Population growth decreases as population density increases, above a certain density.

  4. Population growth increases as population density increases, causing density to then decrease.

  5. Population growth decreases as population density increases, causing density to then decrease.
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice population and how it changes human population ecology and environment zoology

Refer to the table below containing data obtained for a rabbit population over a period of several years.

Year Number of rabbits
1 4
2 17
3 62
4 245


Ultimately, the amount of nutrients and other resources would become limiting. What would happen to the rabbit population at that time?

  1. It would reach the carrying capacity of the environment.

  2. It would continue to grow indefinitely.

  3. It would engage in intraspecific competition.

  4. Both A and B.

  5. Both A and C.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

If the nutrients and other resources are limited they will limit the population size and it will reach the "carrying capacity" of the environment and rabbits will compete with one another (intraspecific competition) for these limited nutrients. Therefore, the correct answer is option E.

Multiple choice population and how it changes human population ecology and environment zoology

A population is made up of

  1. All individuals of any kind

  2. All groups of organisms in an area at any one time

  3. Groups of individuals of different kinds in an area

  4. Individuals of the same kind in an area at a given time
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A population is all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding. They are capable of interbreeding or reproduction.

So the correct option is 'individuals of the same kind in an area at a given time'.

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

By the $18^{th}$ century, the term ______ designated the systematic collection of demographic and economic data by states.

  1. statistics

  2. probability

  3. mensuration

  4. trigonometry
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

By the $18^{th}$ century, the term statistics designated the systematic collection of demographic and economic data by states.

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

If the population figures are given for each State of India, then the data can be classified as

  1. Qualitative

  2. Quantitatives

  3. Chronological

  4. Geographical
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There are four important bases of classification:

(1) Qualitative Base (2) Quantitative Base (3) Geographical Base (4) Chronological or Temporal Base

(1) Qualitative Base:

When the data are classified according to some quality or attributes such as sex, religion, literacy, intelligence etc…

(2) Quantitative Base:

When the data are classified by quantitative characteristics like heights, weights, ages, income etc…

(3) Geographical Base:

When the data are classified by geographical regions or location, like states, provinces, cities, countries etc…

(4) Chronological or Temporal Base:

When the data are classified or arranged by their time of occurrence, such as years, months, weeks, days etc…


If the population figures are given for each State of India, then the data can be classified as quantitative data.

Multiple choice geography economic activity people and resources utilisation of europe europe - peninsula of asia continents: europe

Factors which affects population distribution over an area are _______________________________.

  1. Climatic conditions, political systems and means of livelihood.

  2. Climatic conditions, terrain, political systems and means of livelihood.

  3. Climatic conditions, terrain and means of livelihood.

  4. Climatic conditions, terrain, political systems.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Physical factors that affect population distribution include altitude and latitude, relief, climate, soils, vegetation, water and location of mineral and energy resources. It is important to note that most of the physical factors influence population distribution only indirectly through climatic conditions.

Multiple choice zoology our environment - our concern biomagnification the effects of human activities on ecosystems bioaccumulation and biomagnification

The term "bio-magnification" refers to the

  1. Growth of organism due to food consumption.

  2. Increase in population size.

  3. Blowing up of environmental issues by man

  4. Increase in the concentration of non-degradable pollutants as they pass through food chain.

  5. Decrease in population size.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The biotic components of an ecosystem are arranged in several trophic levels which are interdependent on each other. The energy produced at one level is passed to another level. Biomagnification refers to increase in concentration of the toxicant at successive trophic levels. This happens because a toxic substance accumulated by an organism cannot be metabolised or excreted, and is thus passed on to the next higher trophic level. This phenomenon is well known for mercury and DDT. 

Multiple choice geography position of rajasthan in indian economy physical features of rajasthan rajasthan - a general introduction physical features of india and rajasthan

The increase in number of residents of a country/ state/ region in a particular time period is called _____________.

  1. migration

  2. population increase

  3. density of population

  4. urbanization
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Growth of population refers to the change in the number of inhabitants of a country/territory during a specific period, say during the last ten years. Such a change can be expressed in two ways: in terms of absolute numbers and terms of percentage change per year. 

Multiple choice geography position of rajasthan in indian economy physical features of rajasthan rajasthan - a general introduction physical features of india and rajasthan

What is the major cause for population increase or decrease at a particular place?

  1. Unemployment

  2. Birth rate, death rate and migration

  3. Urbanization

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The three main processes of change of population: birth rates, death rates and migration. The natural increase in population is the difference between birth rates and death rates. 

The birth rate is the number of live births per thousand persons in a year. It is a major component of growth because, in India, birth rates have always been higher than death rates. 
The death rate is the number of deaths per thousand persons in a year. The main cause of the rate of growth of the Indian population has been the rapid decline in death rates. 
Migration is the movement of people across regions and territories. Migration can be internal (within the country) or international (between the countries).

Multiple choice geography population density and distribution population and migration population : size, density, growth and structure population : distribution, density and growth

How is density of population usually measured?

  1. Persons per sq. km.

  2. The number of people in a country.

  3. The number of house holds in a country.

  4. The number of births from one census to the next in a country
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The population density is the ratio between the land area and the people living over it. It is the number of people per unit of area, usually quoted ‘population per square kilometer’. According to census 2011, India's population density is 382 per square kilometer.