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An ecosystem by definition includes communities of ________________(1) living in a particular space and their _______________ (2) with the environment in which they live by maintaining a balance amongst themselves and the environmental components. Thus ecosystem is the ___________ (3) existence of balance between the living and non-living components. Ecosystems can be natural like forest, land, pond and artificial or man-made such as aquaria, dams, sanctuaries, zoos.
Plants, the primary producers, ______________ (4) the sun’s energy and synthesize food through photosynthesis. The consumers including ____________ (5), humans and other animals are dependent on the producers for their food (energy) directly or indirectly. Finally, all the components of biota in due course of time __________ (6) and their bodies will be ____________ (7) by microbes and the carbon and nitrogen they contain will be recycled into the environment.
In the case of the wall, light attracts insects, and they get trapped in the spider’s web forming the _____________ (8) for the spider as well as the lizards. There is no trapping of energy by the producers. The insects feed on the plants existing in the environment external to the wall and there is no ______________ (9) of the nutrients from the excreta or other things to the wall as it happens in other ecosystems. Hence such a wall cannot be called an ecosystem by itself. But the different organisms definitely form the __________ (10) of the food chain and form a part of a bigger ecosystem.
1.
a) living things
b) organisms
c) creatures
d) All are correct
2.
a) immanent
b) interactions
c) interplay
d) All are correct
3.
a) Accordant
b) Harmonious
c) constitutive
d) All are correct
4.
a) Trap
b) Decoy
c) leveraging
d) All are correct
5.
a) sediment
b) adhere
c) insects
d) All are correct
6.
a) compel
b) perish
c) desolate
d) All are correct
7.
a) decomposed
b) Broken
c) horrid
d) All of these
8.
a) laced
b) sorghum
c) feed
d) All are correct
9.
a) recycling
b) tautologize
c) vital
d) All are correct
10.
a) links
b) connexion
c) incorporation
d) All are correct
Answers:
d) All are correct
a) immanent
c) constitutive
c) leveraging
b) adhere
a) compel
c) horrid
a) laced
c) vital
d) All are correct