Environmental Studies · Biology

Biodiversity and Conservation

2,388 Questions

Biodiversity and conservation questions address threats to ecosystems, climate change impacts, and habitat loss. These topics are essential for environmental science sections in major competitive exams. Practicing these questions clarifies concepts regarding species extinction and ecological management.

Habitat loss consequencesClimate change impactsEcosystem degradation causesDesert biodiversity threatsForest diversity threatsResource extraction effects

Biodiversity and Conservation Questions

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Which of the following statements is incorrect regarding biodiversity?

  1. Biodiversity deals with biological and geographical units such as genes, chromosomes, species, families and biogeographic religions.

  2. Biodiversity is an addition sum of genetic, taxonomic and ecosystem diversity.

  3. It is a measure of the amount of resources shared by the human population.

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Biodiversity refers to the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level.
  • It deals with biological and geographical units such as genes, chromosomes, species, families and biogeographic religions
  • It is an additional sum of genetic, taxonomic and ecosystem diversity.
  • Biodiversity is a measure of species richness i.e  The number of groups of genetically or functionally related individuals.
  • Hence Biodiversity is a measure of the number of resources shared by the human population is a wrong statement.
  • So, the correct answer is 'Option C'.
Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Among the ecosystem mentioned below where can one maximum biodiversity? 

  1. Mangroves

  2. Desert

  3. Coral reefs

  4. Alpine Meadows
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Ecosystem diversity deals with the variations in ecosystems within a geographical location and its overall impact on human existence and the environment. Ecosystem diversity is a type of biodiversity. It is the variation in the ecosystems found in a region or the variation in ecosystems over the whole planet. Biodiversity is important because it clears out our water, changes out climate, and provides us with food. Ecological diversity includes the variation in both terrestrial and aquatic ecosystems. Ecological diversity can also take into account the variation in the complexity of a biological community, including the number of different niches, the number of trophic levels and other ecological processes. A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Often called "rainforests of the sea", shallow coral reefs form some of Earth's most diverse ecosystems. They occupy less than 0.1% of the world's ocean area, about half the area of France, yet they provide a home for at least 25% of all marine species, including fish, mollusks, worms, crustaceans, echinoderms, sponges, tunicates and other cnidarians.
So the correct option is 'coral reefs'.
Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Variety of organisms existing on the earth, their interrelationships and their relationship with the environment is called as

  1. Diversity

  2. Biosphere

  3. Biology

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

Biodiversity is the variation in living organisms from all sources such as terrestrial and aquatic ecosystems. It also involves the interaction of the biotic and abiotic factors with each other. Biodiversity is responsible for maintenance of balance in the ecosystem. Thus the correct answer is option D.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Measure of biodiversity of an area is

  1. The number of species found there

  2. The range of different life forms

  3. Both A and B

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

Biodiversity is the variety of different types of life found on the Earth and the variations within species. It is a measure of the variety of organisms present in different ecosystems. Hence, the correct answer is option C.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

The study of total number and types of organisms present on earth is

  1. Ecology

  2. Taxonomy

  3. Biodiversity

  4. Classification
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biodiversity is the term used to describe the variety of life found on Earth and all of the natural processes. This can refer to genetic variation, ecosystem variation or species variation within an area, biome or planet. The biodiversity is more concentrated within the tropical ecosystems than temperate ecosystems. The most diverse group of animals are invertebrates. 
Some human activities have indirect but wide-reaching effects on biodiversity, including climate change and pollution. These threats have put a serious strain on the diversity of species on Earth.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Variety of organisms in different ecosystem can be measured by 

  1. Genetics

  2. Microbiology

  3. Biodiversity

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biodiversity is the measure of the variety of life on the earth. It can refer to genetic variation, ecosystem variation, or species variation within an area, biome, or planet. Thus, the correct answer is option C.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

................ is a measure of the variety of organisms present in different ecosystems.

  1. Environment

  2. Biodiversity

  3. Generation

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

Biodiversity, a contraction of "biological diversity," generally refers to the variety and variability of life on the Earth. One of the most widely used definitions defines it in terms of the variability within species, between species and between ecosystems. It is a measure of the variety of organisms present in different ecosystems.  

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Biodiversity consists of variety of

  1. Plants

  2. Animals

  3. Organisms

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

The different variety of life forms is known as biodiversity which includes plants, animals and microorganisms where they interact with each other and maintain the ecosystem. Thus, the correct answer is option D.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Alpha diversity is biodiversity present

  1. Within community

  2. Between community

  3. Ranges of communities

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The local species pool is known as alpha diversity. It is also the diversity present within the community. Beta diversity is the diversity present between the communities. The diversity present in the ranges of communities is known as Gamma diversity.

So, the correct answer is 'Within community'.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Biodiversity is determined by

  1. Number of individuals in an area

  2. Species richness

  3. Evenness

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The variety and variability of living organisms (both plants and animals) are known as biodiversity. The variation measured by biodiversity is at the genetic, species, and ecosystem level. Species richness and evenness are major factors determining biodiversity. Tropics have the highest biodiversity.

So, the correct answer is 'Both B and C'.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Select correct statement about biodiversity.

  1. Desert areas of Rajasthan and Gujarat have a very high level of desert animal species as well as rare animals

  2. Western Ghats have a very high degree of species richness and endemism

  3. Conservation of biodiversity is a fad pursued by developed countries

  4. Large scale planting of Bt cotton has no adverse effect on biodiversity
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A mountain range that runs parallel to the western coast of the Indian peninsula is known as the Western Ghats. The area has over 7,402 species of flowering plants, 1,814 species of non-flowering plants, 139 mammal species, 508 bird species, 179 amphibian species, 6,000 insects species, and 290 freshwater fish species. Many undiscovered species also exist. Around 325 globally threatened species also occur here. And this makes clear that the Western Ghats are the most biodiversity-rich zone in India. It is also known as 'Cradle of speciation'.

So, the correct answer is 'Western Ghats have a very high degree of species richness and endemism'.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Biodiversity

  1. Increases towards the equator

  2. Decreases towards the equator

  3. Remains same throughout the planet

  4. Has no effect on change in latitude
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biodiversity generally follows a latitudinal gradient, where species richness is highest in the tropics (near the equator) and decreases toward the poles.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Variety of life forms, expressed as a number of species in an area, known as

  1. Biodiversity

  2. Ecological Diversity

  3. Ecosystem

  4. All of Above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The variety of life forms expressed as the number of species in a specific area is the definition of species diversity, which is a component of biodiversity.