Tag: commercial applications

Quizzes (170) Questions (1551)

Questions Related to commercial applications

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

An ecosystem is a complex interacting system of

  1. Individual

  2. Population

  3. Community and their physical environment

  4. Community and their soil condition
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An ecosystem is a segment of biosphere consisting of a community of living beings and the abiotic or physical environment interacting and exchanging materials between them. The interactions ultimately result in trapping of energy and production of biomass in an ecosystem. Therefore, the correct answer is option C.

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

Ecosystem is

  1. Open

  2. Closed

  3. Both A and B

  4. Neither open nor closed
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

As per thermodynamics, a system can be open or closed. An ecosystem is an open system because an open system is a system in which energy and nutrients are exchanged between the physical environment and living organisms. In a closed ecosystem, the waste product of an organism is used by the other organism, like decomposers. Therefore, the correct answer is option C.

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

Ecosystem is defined as

  1. Relation between plants and animals

  2. Relation between biotic and physical components

  3. Relation between producers and decomposers

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

An ecosystem is a community of  organisms living and interacting with the non-living components of the environment within a system. It is made up of 2 types of components viz., biotic and abiotic. Ecosystem represents the relation between  biotic and physical componenets.

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 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 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 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.

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

How many of the following will act as a decomposer in a pond ecosystem?
[spider, earthworm, woodlouse, fungus]

  1. One

  2. Two

  3. Three

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

Decomposers are the organisms which feed on dead organisms such as microbes. Spider feeds on other insects and acts as a predator and woodlouse found in forest and feeds on plant matter from the forest floor. Whereas earthworm and fungus can grow in pond water and feeds on dead organisms (plant or animal).

So, the correct answer is 'Two'.

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

Ecosystem can be recognised as self-regulating and self sustaining unit of

  1. Species

  2. Landscape

  3. Organism

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

An ecosystem is a community of living organisms together with non-living components of their environment, functioning together as a system. The term 'ecosystem' was first proposed by Sir Arthur Tansley in 1935. The ecosystem can be recognized as a self-regulating and self-sustaining unit of 'landscape'. Hence, the correct answer is option B. ''landscape'.