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 economics parameters (indicators) of development human development and human development index (hdi) hdi dynamic of human development

What are the three factors that determine population growth of a country?

  1. Natality, mortality, migration

  2. Standard of living, income, heredity

  3. Regional development, income, religion

  4. Religion, income and education
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Population growth is fundamentally determined by the balance of births (natality), deaths (mortality), and the movement of people (migration). These three demographic components dictate whether a population increases or decreases over time.

Multiple choice economics parameters (indicators) of development human development and human development index (hdi) hdi dynamic of human development

Consider the following indications:
1) High birth rate and low death rate
2) Low birth rate and low death rate
3) High birth rate and high death rate
The correct sequence of these in the course of economic development is:

  1. 3, 2, 1

  2. 1, 3, 2

  3. 2, 3, 1

  4. 3, 1, 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The sequence explains the theory of demographic transition.Before the economic modernizations, the country had stable or very slow growing population as a result of a combination of high birth rate and almost equally high death rate. With economic development, resulting in higher incomes, improved public health facilities, there was marked a decline in mortality that gradually raised life expectancy. With declining death rate but birth rate not falling correspondingly, the country passed through the second stage, marking the beginning of a demographic transition. Finally, the state third comes when the force and influence of modernization and economic development cause fertility to decline so that eventually falling birth rate converge with the lower death rate.

Multiple choice biology reproductive health reproductive health of humans need of family planning reproductive health problems different types of reproduction

_____ means the ability of a human to reproduce and regulate the fertility.

  1. Mortality

  2. Reproductive health

  3. Woman health

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

Reproductive health means the ability of a woman to reproduce and regulate her fertility. It also means safe pregnancy, childbirth, contraceptives, and sex. It also includes avoidance of sexually transmitted diseases (STDs). 

Therefore, the correct answer is 'Reproductive health'.

Multiple choice biology reproductive health reproductive health of humans need of family planning reproductive health problems different types of reproduction

The average number of children that would be borne to a female during her lifetime is called

  1. Natality

  2. Birth rate

  3. Population growth

  4. Total fertility rate
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The total number of children born or likely to be born to a woman in her lifetime if she were subject to the prevailing rate of age-specific fertility in the population is called as Total fertility rate.

So, the correct answer to the question is 'Total fertility rate'.

Multiple choice economics dynamic of human development development indices various development indexes social development

"Zero population growth" implies ________.

  1. a rate of growth giving a stable population

  2. the birth and death rates are near to zero

  3. the birth and death rates are equal

  4. low birth rate and low death rate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Zero population growth is a condition where the number of people in a population remains unchanged. It means that the population neither grows or declines. This kind of demographic balance can be achieved when the growth and death rate are equal. Zero population growth is also referred to as the replacement level of fertility.

Thus, the correct answer is C.

Multiple choice economics dynamic of human development development indices various development indexes social development

What is Fertility Rate?

  1. The total number of children born in a country in a given year divided by the number of children dead

  2. The average number of children born to a woman during her reproductive years

  3. The number of births in a country divided by total population in a given year
  4. The number of women in the age group of $15-45$ years in a country divided by total number of women dying during child birth
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fertility Rate means the number of children born to an average woman during her reproductive years. When we talk about fertility rate, we mean the number of live births in women over a specific length of time.

Multiple choice economics dynamic of human development development indices various development indexes social development

Fill in the blanks from the alternatives given.
The difference between birth rate and death rate is called _______.

  1. survival rate

  2. mortality rate

  3. fertility rate

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

There will be a growth in population, when the birth rate is higher than death rate. Also, the difference between birth rate and the death rate is called natural growth rate of population. Also, it can be called as the survival rate of population.

Thus, the correct answer is A.

Multiple choice economics dynamic of human development development indices various development indexes social development

Human Development report defines Human development as the ____________.

  1. process of enlarging peoples choices

  2. process of enlarging human wants

  3. process of enlarging human stock

  4. process of redefining human values
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Human development is defined as the process of enlarging people's freedoms and opportunities and improving their well-being. Human development is about the real freedom ordinary people have to decide who to be, what to do, and how to live. The  Human development concept was developed by economist Mahbub ul Haq.

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

All of the following are population's characteristics except

  1. Number of individuals

  2. Phenotype

  3. Sex ratio

  4. Age distribution

  5. Death rate
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Population characteristics (demographics) include metrics like size, density, sex ratio, age distribution, and birth/death rates. Phenotype is a characteristic of an individual organism, not a property of a population as a whole.

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

The stationary phase of a population occurs when



  1. Natality > Mortality

  2. Natality = Mortality

  3. Mortality > Natality
  4. Natality $ = 0$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Stationary phase (zero growth or plateau rate) of population occurs when birth and death rates are equal, the population stabilizes around the carrying capacity of the environment.

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

Changes in nature of population are called as

  1. Demography

  2. Vital index

  3. Demecology

  4. Population dynamics
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Population Dynamics is a branch of science. It deals with and studies the age, and size of a population. It also studies the other components of a population. As a result, it studies the over all nature of the population.

So, option D is the correct answer.

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

Populations have all of the following characteristics except

  1. Number of individuals

  2. Phenotype

  3. Sex ratio

  4. Age distribution

  5. Death rate
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A population is a group of individual of a species inhabiting a particular geographic area. Number of individuals (population size), sex ratio (ratio of total individuals of two genders), age distribution (number of individuals in different age groups namely, childhood, adults and old age) and death rate (ratio of number of dying individuals to total population size) are some of the characters of population. The phenotype is visual/physical expression of the genotype of an individual; hence, it is characters of individually determined by its genotype. Thus, the correct answer is option B.

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

Which of the following is not the characteristic of population?

  1. Size

  2. Density

  3. Age distribution

  4. Phenotype

  5. Death rate
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The phenotype is not the characteristic of the population. It is the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment

Total size is the number of individuals in a population.
Population density is defined as the number of individuals per unit area or per unit volume of the environment.
Distribution is the spatial pattern of individuals in a population relative to one another.
Death rate means mortality which means the rate of death of individuals in a population. 
Therefore, the correct answer is option D.

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

Population growth is not affected by which one of the following density-dependent factor?

  1. Limited nutrients

  2. Climate and temperature

  3. Build-up of toxins

  4. Predation

  5. Limited water
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Climate temperature is not related to density-dependent factors affecting population growth because density-dependent factor is a limiting factor that depends on population size.
Density-dependent limiting factors include:
•   competition
•   predation
•   parasitism
•   disease, nutrients and water availability
Thus, the correct answer is option B.