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

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'.

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

Which of the following ecosystem lacks one or more structural components?

  1. Deep sea

  2. Freshly formed water pond

  3. Forest ecosystem

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

(A) In deep sea ecosystem has all structural components,

(B) Freshly formed water pond lacks many abiotic components or structural components like atmospheric condition and water resources are absent.
(C) In Forest ecosystem all structural components are present
Thus, the correct answer is 'Freshly formed water pond.'

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

Which of the following is non-essential in an ecosystem:-

  1. $Co _2$

  2. Grass

  3. soil

  4. Fungi
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Fungi are saprophytes, i.e they absorb nourishment from dead and decaying organisms.
They belong to the detritus cycle which includes bacteria and other microorganisms. So do not form the essential component of the ecosystem
So, the correct answer is 'Fungi'
Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

A drop of water is an example of :- 

  1. Micro ecosystem

  2. Macro ecosystem

  3. Nano ecosystem

  4. Both B & C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A drop of water is an example of nano ecosystem. Nano-ecosystems are smaller ecosystems that are specially contained within larger ecosystems but have individual characteristics. It is part of mega ecosystem. 
So, the correct option is 'macro ecosystem'.
Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Definition of ecosystem is

  1. The community of organisms together with the environment in which they live

  2. The abiotic component of a habitat

  3. The part of the earth and its atmosphere which inhibits living organisms

  4. A community of organisms interacting with one another
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An ecosystem is a functional unit consisting of all the living organisms (biotic community) in a particular area interacting with the non-living (abiotic) environment.