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 seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

Pick up the wrong statement :

  1. Lichens are symbiotic association.

  2. Lichens are very good pollution indicators.

  3. Lichens do not grow in unpolluted areas.

  4. The algal component of lichen is known as phycobiont.

  5. The fungal component of lichen is known as mycobiot.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lichens are very sensitive to sulphur dioxide pollution in the air and hence they don't grow in polluted areas. They are found in unpolluted areas.

So the incorrect statement is C.

Multiple choice evs soil- our life horizons of soil soil - formation and profile soil-nature

Which of the following provides shelter for many living organisms?

  1. A-Horizon

  2. B-Horizon

  3. C-Horizon

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

As we know, the soil is made up of many layers. These layers are called horizons. The topmost among these layers is A horizon. It is the layer parallel to the soil surface. It is rich in organic matter. It also contains humus, which is necessary for the proper growth of plants. Thus, we can say that A horizon has many necessary ingredients to support the plant and animal life.

So, option A 'A Horizon" is the correct answer.

Multiple choice geography climate and natural vegetation equatorial climatic region climatic regions the biosphere natural regions natural regions of the world

The correct definition of the 'biome' is areas having _______.

  1. Large forest cover

  2. Large ecosystem on land with distinct vegetation and animal life.

  3. Enough water on land.

  4. Only animal population
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A biome is a community of plants and animals that have common characteristics for the environment they exist in. They can be found over a range of continents. Biomes are distinct biological communities that have formed in response to a shared physical climate.

Multiple choice commercial applications environment in its totality alternatives for minimising depletion of natural resources components of environment effects and successes of environment conservation

Auto ecology deals with ___________.

  1. Ecology of many species

  2. Ecology of system

  3. both a and b

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

  • The study of the interactions between living things and their environments is known as ecology.
  •  In ecology, everything is connected to everything else and there is a constant interaction between organisms and their environment.
  • Autecology is the study of individual organism or individual species. It is also known as population ecology.
  • Autecology helps us to understand the relationships between individual plants and environment.

Multiple choice commercial applications environment in its totality alternatives for minimising depletion of natural resources components of environment effects and successes of environment conservation

Ecology deals with study of ____________.

  1. Living beings

  2. Relationship between living and non living components

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Ecology is the scientific analysis and study of interactions among organisms and their environment.
  • It is an interdisciplinary field that includes biology, geography, and Earth science.
  • Ecology deals with the study of: a) Living beings. b) Living and non-living components. c) Reciprocal relationship between living and non living components.
  • Ecology is distinguished from natural history, which deals primarily with the descriptive study of organisms.
Multiple choice commercial applications environment in its totality alternatives for minimising depletion of natural resources components of environment effects and successes of environment conservation

Environment is the surrounding  where an organism,a community or an object exists.It creates favorable conditions for the existence and development of all living organisms. 

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The definition provided accurately describes the environment as the sum total of conditions and influences that surround and affect the life and development of organisms.

Multiple choice commercial applications environment in its totality alternatives for minimising depletion of natural resources components of environment effects and successes of environment conservation

Besides landforms and drainage, which is the third basic element of the natural environment?

  1. Natural vegetation

  2. Animal life

  3. Climate

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

Climate is the long-term average of weather, typically averaged over a period of 30 years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation.

Multiple choice basics of management of water environmental science conservation of resources food production: soil and water management biology

What is a wetland complex?

  1. Set of wetlands dependent on each other

  2. A wetland with velocity of vegetation and water types

  3. Wetlands which form a boundary of a large water body

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

A wetland complex consists of two or more individual wetlands with overlapping riparian management areas or more.

So, the correct option is 'Set of wetlands dependent on each other'.

Multiple choice zoology biodiversity and conservation hotspots and methods of conservation biodiversity: conservation conservation of biodiversity basis of classification in animals basis of the classification of animals criteria for animal classification

Hot spots of biodiversity means

  1. Areas of earth that contain many endemic species

  2. Species serves as proxy for entire community in particular areas

  3. Species in particular niche/area

  4. Species diversity at particular area
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ecological hot spots are large areas of Earth's land surface which have high concentrations of plant endemism and also experience high rates of habitat loss. In India, 4 ecological hot spots are presently identified. The Himalayas, the Western Ghats, the Indo-Burma region and the Sundaland constitute the biodiversity hot spots in our country. One of the major features of these places is the presence of numerous endemic species.

So, the correct answer is 'Areas of earth that contain many endemic species'.

Multiple choice evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

Pyramid of bio mass and number in a pond ecosystem ake-

  1. inverted and upright

  2. inverted and irregular

  3. both upright

  4. both unverted
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It is the graphical representation which shows the biomass or bio productivity in an eco system at each tropical level.

Therefore the right answer is option "A, inverted and upright".

Multiple choice evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

Which one of the following is not used for construction of ecological pyramids?

  1. Number of individuals

  2. Rate of energy flow

  3. Fresh weight

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

Fresh weight of organisms and their body parts comprises of water content along with the actual dry weight. The fresh weight is deviating w.r.t metabolism and availability in the same organism or different organisms taken under observation. This makes the standard comparison difficult. Hence, fresh weight is not used for the construction of the ecological pyramid.

So, the correct option is 'Fresh weight'.