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

Choose the correct statement.

  1. A species is one type of population.

  2. A species is a local subset of a population.

  3. A population is a local subset of a species.

  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

A species is a broad biological classification of organisms capable of interbreeding. A population is a specific group of individuals of that species found in a particular location, making it a local subset of the species.

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

Study of ecology of population is called as

  1. Autecology

  2. Synecology

  3. Ecosystem

  4. Demecology
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Autecology is the study of the interactions of an individual organism or a single species with the living and nonliving factors of its environment. 
Synecology is the branch of science that deals with the natural community and its environment.
An ecosystem is a community of living organisms where the biotic and abiotic components interact with each other.
Demecology is that branch of biology which deals with the ecology of populations
Therefore, the correct answer is option D

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

Organisms belonging to the same species form a

  1. Population

  2. Community

  3. Ecosystem

  4. Trophic level

  5. Guild
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Species is the basic unit in a biological classification and taxonomic ranking system. Generally, species is defined as a group of organisms in which two individuals are capable of reproducing their offspring, Organisms belonging to the same species in a particular locality is termed as population. 

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

Smallest unit to evolve through natural selection is

  1. Cell

  2. Clade

  3. Organism

  4. Population

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

According to Darwin, evolution happens through natural selection which is a differential success in reproduction and adaptation of the organisms to their environment. The population is defined as a group of interbreeding organisms belonging to a particular species and sharing a common geographic area. Thus the smallest unit that can evolve through natural selection is the population. Thus, the correct answer is option D.

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

An example of population is

  1. All the honeybees in an orchard in one spring

  2. All the plants and animals in a forest

  3. The living and nonliving factors in a meadow

  4. The life in Earths atmosphere

  5. All the buffalo in 1840
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The term population refers to the number of animals or people in a particular place. The term also includes  group of similar organisms living in the same region or habitat such as organisms of the same species or number of honeybees in an orchard in one spring.

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

Individuals of a species which occur in a particular area constitute ______________.

  1. Flora

  2. Fauna

  3. Community

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

This is a duplicate of question 451555 with the same correct answer. A population consists of all individuals of the same species inhabiting a particular area. It is distinct from community (multiple species), flora (plants), or fauna (animals).

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

Individuals of any species at a place from

  1. biotic community

  2. ecosystem

  3. population

  4. biome
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A. Biotic community is a group of populations of different species in a given area.
B. The ecosystem is the community of organisms that interact with each other and their surroundings or environment.
C. A population is a group of individual organisms of same species living in a given area.
D. A biome is a complex of different type of communities which are maintained under more or less similar climatic conditions.
So, the correct answer is 'Population'.
Multiple choice population and how it changes human population ecology and environment zoology

Individual of one kind occupying a particular geographic area at a given time are called

  1. Community

  2. Population

  3. Species

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

Individuals of the same kind (species) occupying a specific area at a specific time are defined as a population. A community involves multiple species, and a species is the general classification.

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.