Tag: ecology and environment

Quizzes (49) Questions (65)

Questions Related to ecology and environment

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

The relationship between a population and a species is described by

  1. A species is one type of population

  2. A species is a local subset of a population

  3. A population is a group of organisms occupying a specific area

  4. A population encompasses many different species

  5. The terms population and species are interchangeable.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Population is a group of individuals of same species that occupy a specific area. A species can have one or more than one population i.e. population is local subset of species and a species can have many populations inhabiting in different areas. Since many populations that can interbreed make a species, these terms are not interchangeable.  Thus, the correct answer is option C.

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

Which of these best describes a population? 

  1. All of the frogs, dragonflies and water nymphs living in a pond.

  2. All of the soil organisms in a garden including the type of soil and moisture content of the soil.

  3. All of the E. coli bacteria living in your intestines.

  4. All of the different types of birds living in a wetland.

  5. An individual Eastern Spotted Skunk Iivng in a prairie.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Population is a group of individual organisms of the same species in a given area.
Among all options, its option C which describes a population because it is showing the group of individuals of one species only i.e. E. coli living in a given area (intestine in this case).
So, the correct answer is 'All of the E. colibaceria living in your intestines'.
Multiple choice population and how it changes human population ecology and environment zoology

Populations are said to be sympatric when ......

  1. Two populations live together and freely interbreed to produce sterile offspring

  2. Two populations are physically isolated by natural barriers

  3. Two populations are isolated but occasionally come together to interbreed

  4. Two populations share the same environment but cannot interbreed
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sympatric populations exist in the same geographic area but are reproductively isolated due to factors like behavioral, temporal, or mechanical differences, preventing them from interbreeding.

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

The sum total of the populations of the same kind of organisms constitute

  1. Colony

  2. Genus

  3. Community

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

Species is a group of the same kind of the organisms.

Genus is a group of organisms which maybe of different species.
colony is usually an association of two or more different kind of organisms which live together usually in mutual relationships.
Community is a big group of organisms which may be of different kind but live together and use the same resources in the same area.
So the correct answer is' Species'.

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

Individuals having similar life cycle experiencing similar ecological parameters at similar stage of life cycle are

  1. Guild

  2. Population

  3. Ecocline

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

"Population" is defined as a group of individuals of the same species living and interbreeding within a same given area. Members of a population often rely on the same resources and are subject to similar environmental constraints.

"Guild" is any group of species that exploit either same resources or different resources in related ways. Also, it is not necessary that the species within a guild occupy the same, or even similar  ecological niches.
"Ecoline"  is a physical transition zone. It is a variation of the physicochemical environment of one or two physicochemical factors.
"Biotype" is a group of individuals that are genetically identical but form a physiologically distinct race within a species, having dissimilar parameters.
Hence, answer is "Population".