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 evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Biosphere is

  1. Global ecosystem

  2. Global community

  3. Living organism

  4. Count of organism on earth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The biosphere is the global sum of all ecosystems, representing the zone of life on Earth. It includes all living organisms and their interactions with the lithosphere, hydrosphere, and atmosphere.

Multiple choice botany adaptations to different ecosystems lichen lichens lichens ( the nature's pioneers )

Pick up the wrong statement.

  1. Lichens are symbiotic associations.

  2. Lichens do not grow in unpolluted areas.

  3. Lichens are very good pollution indicators.

  4. Algal component of lichen is known as phycobiont .
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • Lichens are widely used as environmental indicators or bio-indicators. If the air is clean, shrubby, hairy and leafy, the lichens become abundant. 
  • Only a few lichen species can tolerate quite high levels of pollution.

So the correct option is B.

Multiple choice

Ecology deals with

  1. Birds

  2. Cell formation

  3. Relation between organisms and their environment

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

Ecology is the branch of biology that studies the interactions among organisms and their physical environment.

Multiple choice

Which of the following is a false statement about wetlands?

  1. Wetlands are biologically diverse ecosystems.

  2. Wetlands are natural water purifiers.

  3. Wetlands provide storm protection and flood control.

  4. Wetlands are useless areas.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Wetlands are highly valuable ecosystems that provide critical services like water purification, flood control, and habitat for diverse species; calling them useless is incorrect.

Multiple choice

Which is NOT an example of a freshwater ecosystem?

  1. lake

  2. river

  3. wetland

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

An estuary is a body of water where freshwater from rivers meets and mixes with saltwater from the ocean, making it a brackish ecosystem rather than a strictly freshwater one.

Multiple choice

Select the best definition of biodiversity.

  1. the study of plants in a specific ecosystem or habitat

  2. the variety of life in a specific ecosystem or habitat

  3. the study of mammals in a specific ecosystem or habitat

  4. the variety of mammals in a specific ecosystem or habitat
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biodiversity refers to the variety of all living organisms within a given area. Options A, C, and D are too narrow because they focus only on specific groups like plants or mammals.

Multiple choice

Abiotic means _______, while biotic means _______.

  1. living, nonliving

  2. nonallergic, allergic

  3. nonliving, living

  4. once alive, now dead
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In ecology, 'abiotic' refers to non-living physical and chemical elements, while 'biotic' refers to living or once-living organisms.

Multiple choice natural vegetation and wildlife of india and world resources of india and world general knowledge

A large unit of vegetation having uniformity of not only the life form but also of adaptation of environment is called _______.

  1. A biochore

  2. A biome

  3. A forest

  4. An ecological niche
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A biome is a large ecological area characterized by uniform life forms and vegetation adapted to a specific climate. It represents a major regional community of plants and animals, such as a desert or tundra, defined by its environmental conditions.