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 zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

A regional ecological unit having a specific climate is

  1. Biome

  2. Landscape

  3. Ecosystem

  4. Biotic community
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A biome is a unit that has its own community of plants and animals that thrive in a specific climate.
A landscape is a patch of a land that does not have a fixed natural boundary. An ecosystem is formed when many biological communities interact with each other and their environment.
A biotic community is a group of similar organisms which live together.
So the  correct answer is a 'Biome.'
Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

Biosphere is 

  1. a component in the ecosystem

  2. composed of the plants present in the sil

  3. life in the outer space

  4. composed of all living organisms present on earth which interact with the physical environment.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The living world consists of many ecosystems. There are 2 main factors present in an ecosystem, namely abiotic (nonliving) and biotic (living). All of these factors interact with each other. The living world is divided into a different sphere, namely:

1. Lithosphere
2. Hydrosphere
3. Atmosphere
All these spheres together constitute the biosphere.
So, option D is the correct answer.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

The great barrier reed along the cast coast of Australia can be categorized as?

  1. Biome

  2. Ecosystem

  3. Community

  4. Population
Reveal answer Fill a bubble to check yourself
A 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. 
  • For example, an aquatic biome can contain ecosystems such as coral reefs and kelp forests and The great barrier reed along the cast coast of Australia.
  • Hence, The great barrier reed along the cast coast of Australia can be categorized as Biome. 
  • So, the correct answer is 'Biome'.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

Last level in ecological hierarchy in which only living factors are being studied:-

  1. Species

  2. Community

  3. Ecosystem

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

There are 4 levels of hierarchy in an ecosystem, the organism level, population level, community level or ecosystem level and the biosphere level. Among them the biosphere level is the highest level and represents the totality of all things on Earth, including their interactions. The biosphere includes all ecosystems on Earth and how they interact together. So, the correct option is 'biome'.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

Ecological niche of an organism represents

  1. The resource it utilizes

  2. Functional role in the ecological system

  3. The range of conditions that it can tolerate

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

An ecological niche describes the functional role of an organism in its ecosystem, including the resources it uses, the conditions it tolerates, and its interactions with other species.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

The Great Barrier Reef along the east coast of Australia can be categorized as

  1. Population

  2. Community

  3. Ecosystem

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

'The Great Barrier Reef' is considered as a biome. Since biomes are climatically and geographically defined as contiguous areas with similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms, and are often referred to as ecosystems. 'The Great Barrier Reef' is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres over an area of approximately 344,400 square kilometres.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

Community is total number of animals and plants

  1. In any area

  2. In any area over a unit of time

  3. In any area over a unit of time per thousand individuals

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

In ecology, a community or biocoenosis is an assemblage or associations of populations of two or more different species occupying the same geographical area and in a particular time. The term community has a variety of uses. In its simplest form it refers to groups of organisms in a specific place or time. 

Community ecology or synecology is the study of the interactions between species in communities on many spatial and temporal scales, including the distribution, structure, abundance, demography, and interactions between coexisting populations.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

The term 'biosphere' refers to

  1. Atmosphere

  2. Living community of whole ecosystem

  3. Stratosphere

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

The biosphere is the part of the Earth and its atmosphere in which living organisms exist or that is capable of supporting life. The biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

A biosphere is composed of 

  1. Living organisms

  2. Living organisms + lithosphere

  3. Living organisms + lithosphere + atmosphere

  4. Living organisms + lithosphere + atmosphere + hydrosphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The biosphere is composed of all living organisms. Plants, animals, and one-celled organisms are all part of the biosphere. The biosphere includes all the areas inhabited by living things, like the hydrosphere, which includes all the water; the atmosphere, which includes all the air; and the lithosphere, which includes all the land.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

Biosphere refers to 

  1. Plants of the world

  2. Special plants

  3. Area occupied by living beings

  4. Plants of a particular area
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The biosphere is the global ecological system, integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

The term biosphere is used for the zone of the Earth, where life exists 

  1. On the lithosphere

  2. In the hydrosphere

  3. In the lithosphere and hydrosphere

  4. In the lithosphere, hydrosphere and atmosphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The biosphere is composed of all living organisms. Plants, animals, and one-celled organisms are all part of the biosphere. The biosphere includes all the areas inhabited by living things, like the hydrosphere, which includes all the water; the atmosphere, which includes all the air; and the lithosphere, which includes all the land.