Tag: ecology and ecosystem

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Questions Related to ecology and ecosystem

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Ecosystem may be defined as

  1. Group of plants which act as the energy suppliers

  2. Group of organisms which form population

  3. Functional unit for ecological studies

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

The ecosystem is a segment of nature or biosphere consisting of a community of living beings and the abiotic or physical environment both interacting and exchanging materials between them. 

The ecosystem is defined as a functional unit of ecology because it is the smallest unit of nature, which is independent and self-sustaining due to various interactions between abiotic and biotic components and different organisms among themselves.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Which one of the following factors is contributed by biotic elements in the ecosystem

  1. Photoperiod
  2. $CO _{2}$

  3. Texture and porosity of soil

  4. Rainfall
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biotic elements are the living components of an ecosystem. CO2 is part of the carbon cycle, which is heavily influenced by biotic processes like respiration and photosynthesis, whereas photoperiod, soil texture, and rainfall are abiotic factors.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Study of inter-relationships between a species/individual and its environment in all stages of its life cycle is

  1. Synecology

  2. Autecology

  3. Forest Ecology

  4. Ecology
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Autecology is the study of the ecology of a single individual or species in relation to its environment. Synecology, by contrast, is the study of groups of organisms or communities.

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Who proposed the term ecosystem?

  1. Odum

  2. Gardner

  3. Warming

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

Ecosystem is a biological community that lives in conjugation with the nonbiological community. It can also be defined as all plants and animal species along with environment. It includes all living things like plants, animals and non-living things like air, water, land, etc. The term Ecosystem was termed by Arthur Tansley in 1935.

Thus, the correct answer is 'Tansley.'

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Ecosystem may be defined as

  1. A species along with environment

  2. Plants found in water

  3. Plants found on land

  4. All plants and animal species along with environment
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ecosystem is a biological community that lives in conjugation with the nonbiological community. It can also be defined as all plants and animal species along with environment. It includes all living things like plants, animals and non-living things like air, water, land, etc.

Thus, the correct answer is 'All plants and animal species along with environment.'

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Biome has organisms of various trophic levels 

  1. Reacting with abiotic environment

  2. Constitute a sociological unit

  3. Live a symbiotic life

  4. Inhabit a desert
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biome is a community that consists of plants and animals having common characteristics in a given environment. In other words, biome has organisms of various trophic levels reacting with abiotic environment. The different biomes include aquatic biome, forest biome, desert biome, tundra biome and grassland biome.

Thus, the correct answer is 'Reacting with abiotic enviornment.'

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Ecosystem contains 

  1. Food web

  2. Food chain

  3. Both A and B

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

An ecosystem is all plants and animal species along with environment. It consists of biotic components such as producers, consumers and decomposers and abiotic components such as air, water, temperature, soil. It contains both food chain and food web. Food chain consists of producers, consumers and decomposers. It is a series of plants/animals which are interrelated in the form of organism being eaten as food by the other organism. Various interlinked food chains in a community constitutes the food web.

Thus, the correct answer is 'Both A and B.'

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Who coined the term ecosystem?

  1. Tansley

  2. Odum

  3. Warming

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

A. Arthur George Tansley coined the term ecosystem' in 1935 to describe the interactions between organisms and with their environment. 

B. Odum was an American biologist who worked on ecosystem ecology and wrote the book 'Fundamentals of ecology'.
C. Eugenius warming was the first to write a textbook on plant ecology. He gave the concept and content on ecology.
D. Darwin gave a theory of natural selection which states that only fittest individuals are selected by nature and unfit ones are eliminated.
So, the correct answer is 'Tansley'.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Which one is not the dynamic aspect of an ecosystem?

  1. Producers and mineral cycles

  2. Consumers and mineral cycles

  3. Producers and energy flow

  4. Energy flow and mineral cycles
Reveal answer Fill a bubble to check yourself
A,B,C Correct answer
Explanation

Dynamic aspects of an ecosystem are mineral cycles and energy flow. Mineral cycles are biogeochemical cycles through which there is exchange or circulation of nutrients in the biosphere. Energy flow occurs in a unidirectional manner in an ecosystem from lower trophic levels to higher trophic levels. Through these dynamic aspects, biotic and abiotic components of an ecosystem are connected. Biotic components are living part of the environment which include producers, consumers and decomposers whereas abiotic components are non living part of the environment which include light, water, temperature etc.

So, the correct answer is options 'A, B and C'.

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

The term ecosystem was coined by

  1. Warming

  2. Odum

  3. Tansley

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

Term ecosystem was coined by Tansley while the term ecosystem was coined by Ernst Haeckel. Warming wrote the first book on plant ecology. Odum described an ecosystem as a functional unit of nature.

So, the correct answer is option C, Tansley.