Environmental Studies · Biology

Ecology and Biodiversity

1,739 Questions

Ecology and biodiversity are vital topics in environmental studies, covering ecosystem structures, species diversity, and environmental impacts. These concepts are frequently tested in competitive examinations for civil services and state selections. The questions cover carrying capacity, ecological succession, and conservation fundamentals.

Species richness measurementTypes of ecological diversityBiome distribution factorsCarrying capacity conceptEcosystem servicesEnvironmental Impact Assessment

Ecology and Biodiversity Questions

Multiple choice biology main natural resources classification of threatened species red data book methods of conservation

Which one of the following statements is appropriate for the Red Data Book?

  1. It gives data on species threatened with extinction

  2. It is a list of plants and animals is Res Sea

  3. It provides data on effect of red light on photosynthesis

  4. It is the list of red-pigmented plants
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Red Data Book is the international standard for documenting the status of species that are facing a high risk of extinction.

Multiple choice evs forests and life forest - the dwelling place of animals forest and its importance introduction to forests conservation of forest and wildlife wildlife

The key elements that determine differences in environmental conditions of different habitats include 

  1. Temperature

  2. Light

  3. Soil

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Environment is the sum of all boo tic (living) and a biotin (non-living) factors that surround and practically influence the organism. All components are Inter-linked and inter-dependent. Biotin factors include different organism. Abiotic factors are non-living factors survival, form, function, behavior and reproduction of organism. There are many abiotic factors. The four major abiotic factors are temperature, water, light and soil. 

So, the correct answer is 'All of the above'.

Multiple choice evs forests and life forest - the dwelling place of animals forest and its importance introduction to forests conservation of forest and wildlife wildlife

Which of the following is called as dynamic living entity?

  1. Oceans

  2. Villages

  3. Cities

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

  • Forests are areas of biodiversity hot spots, as we know. They are full of plants, trees, animals and birds. 
  • Even the dead bodies of plants and animals are decayed by saprophytes, supporting large forms of life. 
  • In this process, they provide the soil with nutrients that help the seeds to grow properly and support new forms of life. So we can say that forests are dynamic living entities.
So, option D, 'Forests' is the correct answer.

Multiple choice evs forests and life forest - the dwelling place of animals forest and its importance introduction to forests conservation of forest and wildlife wildlife

The area to which a species is biologically adapted to live is known as __________

  1. Niche

  2. Habitat

  3. Succession

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

A habitat is the natural environment in which a particular species lives, grows, and reproduces. It provides the necessary conditions for the species to survive.

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

All the populations of organisms living together and potentially interacting in an area form a 

  1. Carrying capacity

  2. Biome

  3. Ecosystem

  4. Biological community

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

A biological community consists of all the populations of different species that live and interact in a specific area.

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. Population

  4. Flora and fauna
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A population is defined as a group of individuals of the same species occupying a specific geographic area at a given time. Flora and fauna refer to all plant and animal life, respectively, in a region, which may include many different species.

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

The correct sequence, from simplest to most complex is represented by

  1. Population - organism - community - ecosystem - biosphere

  2. Organism - population - community - ecosystem - biosphere

  3. Organism - population - community - biosphere - ecosystem

  4. Population - organism - community - biosphere - ecosystem

  5. Organism - community - population - ecosystem - biosphere
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The biological hierarchy proceeds from the individual organism to a population (group of same species), then to a community (multiple species), then to an ecosystem (biotic and abiotic factors), and finally to the biosphere (the global sum of all ecosystems).

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

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

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

Population is

  1. All animals of an area

  2. All plants of an area

  3. All plants and animals of an area

  4. All individuals of a species
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The answer is population because, population is defined as a community that consists of all the individuals of a given species in a specific area. All animals and plants of an area defines all species of plants or animals and in that sense we can say that number of plants or animals in the given area is there. But for a population to form we take into account all the individuals of a given species only, it makes it specific and therefore cannot comprise of  all the animals or plants. So the correct answer is ' all Individuals of a species'. 

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

A group of individuals of a plant or animal species, inhabiting a given area is called

  1. Biome

  2. Population

  3. Ecosystem

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

A population consists of individuals of the same species inhabiting a given area. Biomes and ecosystems are larger, more complex levels of organization.

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

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'.