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 biology : an introduction introduction to organization of life signs of life what is living?

How many (in number) of the following properties are the defining characteristics of living organisms?
Growth, reproduction, metabolism, cellular organisation, consciousness 

  1. 2

  2. 3

  3. 4

  4. 5
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Growth, metabolism, reproduction, and consciousness are the properties of living organisms. Cellular organization is living is given by cells and in non-living by atoms and molecules so it's not a property just belonging to living. 

Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

Biome is ____________.

  1. part of the planet and its atmosphere

  2. Interacting communities of organism and its environments

  3. Biotic flora of a place

  4. Biotic fauna of a place
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biome is an interaction between various communities of organisms and the environment they live in. These communities of organisms dwell in similar geographical, climatic and other biotic factors.

Example-Tundra, Grasslands etc
So, the correct answer is 'Interacting communities of organism and its environments'


Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

Which of the following statements is correct? 

  1. The flora of a place is heavily defined by availability and quality if water.

  2. The availability of light on land is closely linked with that of temperature since Sun is the source for both.

  3. Topography does not affect biodiversity

  4. Soil composition also affects the seepage of water in to ground.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Topography means the physical features of a place such as hills, plains, slopes, rocks, valleys,etc. The topography affects the distribution of organisms directly or indirectly by influencing other factors, such as light intensity, wind velocity nature of sol, rainfall water currents or wave action. 

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

The ecosystem services include.

  1. Maintenance of biodiversity

  2. Pollination of crop

  3. Spiritual, cultural and aesthetic values

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

  • The ecosystem services include 
  • provisioning services such as food and water;
  • regulating services such as regulation of floods, drought, land degradation, and disease; 
  • supporting services such as soil formation and nutrient cycling;
  • and cultural services such as recreational, spiritual, religious and other non-material benefits.
So, the correct option is 'All of these'

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

What are the important factors that bring about biological diversity?

  1. Temperature

  2. Enviornment

  3. Climatic conditions

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

The correct answer is 'all of the above'

Biological diversity occurs due to the differential adaptation of organisms to varying environmental factors such as differences in temperature and climate conditions. These various mechanisms applied for adapting create the vast biological diversity we see around the world. 
So the correct option is D.

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

The product of ecosystem processes which have environmental, asthetic and indirect economic value is called as

  1. Ecosystem services

  2. Biosphere services

  3. Environmental services

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

Ecosystem services are the direct and indirect benefits that humans derive from ecosystems, including provisioning, regulating, supporting, and cultural services that have economic and aesthetic value.

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

In an ecosystem which of the following are important components?

  1. Energy flow and food chain

  2. Mineral recycling and energy flow

  3. Food chain and decomposers

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

Any ecosystem has two components -biotic or living organisms and abiotic or non-living component. 

Further, two most important functional characteristics of any ecosystem are unidirectional flow of energy and cycling of material. The living organisms of an ecosystem are related through food chains, which gives rise to trophic levels in an ecosystem. Energy is transferred from one trophic level to the next through the food chains. 
Of all the organisms in an ecosystem, the most important role is played by decomposers. The nutrients are released back into the environment by the decomposition of dead organisms. Thus, the correct answer is option D.

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Valuable, practical services that help to preserve ecosystem performed by nature are called

  1. Ecosystem service

  2. Biological control

  3. The green house effect

  4. Biosphere balancing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ecosystem services refer to the various benefits that humans freely gain from the natural environment and from properly functioning ecosystems, such as water purification and pollination.