Question 29
Select the mismatched pair in the following and correct it.
(a) Biomagnification — Accumulation of chemicals at the successive trophic levels of a food chain
(b) Ecosystem — Biotic components of the environment
(c) Aquarium — A man-made ecosystem
(d) Parasites — Organisms which obtain food from other living organisms

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Solution

Ecosystem: The system of interdependency among living beings and non-living beings in a given habitat.

Therefore, the mismatched pair is the Ecosystem — Biotic components of the environment.

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Question 29
Select the mismatched pair in the following and correct it.
(a) Biomagnification — Accumulation of chemicals at the successive trophic levels of a food chain
(b) Ecosystem — Biotic components of the environment
(c) Aquarium — A man-made ecosystem
(d) Parasites — Organisms which obtain food from other living organisms

Q. Select the mismatched pair in the following.
(a) Biomagnification- Accumulation of chemicals at the successive trophic levels of a food chain.
(b) Ecosystem- Biotic components of the environment.
(c) Aquarium- A man-made ecosystem.
(d) Parasites- Organisms which obtain food from other living organisms.

Question 9
Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the

(a) food web
(b) ecological pyramid
(c) ecosystem
(d) food chain

Question 9
Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the

(a) food web
(b) ecological pyramid
(c) ecosystem
(d) food chain

Question 5
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as

(a) eutrophication
(b) pollution
(c) biomagnification
(d) accumulation

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Ecological Diversity

Standard XII Biology

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Ecosystem: The system of interdependency among living beings and non-living beings in a given habitat. Therefore, the mismatched pair is the Ecosystem — Biotic components of the environment.

Ecosystem: The system of interdependency among living beings and non-living beings in a given habitat.

Therefore, the mismatched pair is the Ecosystem — Biotic components of the environment.