Tag: evs - i

Questions Related to evs - i

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

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. food web

  2. ecological pyramid

  3. ecosystem

  4. food chain

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Correct Option: A
Explanation:
A. Food web is an interconnected network of many food chains. An organism occupies more than one trophic level in a food chain. It feeds on different organisms of lower trophic levels and may be eaten by other organisms of higher trophic levels.
B. An ecological pyramid is the diagrammatic representation of the relationship between numbers, biomass and energy content of producers and consumers in an ecosystem.
C. The ecosystem is the community of organisms which interact with each other and with their surroundings or environment.
D. A food chain is a series of organisms which eat one and get eaten by others.
So, the correct answer is 'Food web'.

Food web usually exists in ecosystem which

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. Is based on order of preference

  2. Consists of several interconnected food chain

  3. May include organism occupying different tropic levels

  4. More than one option is correct

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Correct Option: D
Explanation:

Food web represents an interconnection of many food chains in an ecosystem and that is the reason in a food web, there can be organisms occupying different trophic level at the same time. For example, in a food web, a crow can be at the second trophic level or at the fourth trophic level.

Hence, the correct answer is 'More than one option is correct'

Food web contains many _______.

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. Primary consumers

  2. Secondary consumers

  3. Tertiary consumers

  4. Food chains

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Correct Option: A

A food web is

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. Like a food chain

  2. A set of interconnected food chains, illustrating the tropic relationships among species

  3. The set of prey species that are consumed by animals in an ecosystem

  4. The tropic (feeding) levels that can be observed in an ecosystem

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Correct Option: B

When number of food chains is interlocked this is called

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. food link

  2. food chain

  3. food web

  4. pyramid

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Correct Option: C

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

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. Food web

  2. Ecological pyramid

  3. Ecosystem

  4. Food chain

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Correct Option: A
Explanation:
A network of food chains or feeding relationships in which organisms of higher trophic level feeds on more than one type of consumers. 

More than one interconnected food chain in a region forms

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. Ecological pryamid

  2. Food web

  3. Food chain

  4. None of the above

Show answer
Correct Option: B
Explanation:

A food web is a natural interconnection between the food chains. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem. All of the interconnected and overlapping food chains in an ecosystem make up a food web.

Therefore, the correct answer is option B.

A group of interconnected food chains is called as a

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. Food cycle

  2. Complex food chain

  3. Pyramid of energy

  4. Food web

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Correct Option: D
Explanation:

A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem. All of the interconnected and overlapping food chains in an ecosystem make up a food web.

Food webs can be constructed to describe

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. The species interactions

  2. The species separation

  3. The species union

  4. None of these

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Correct Option: A
Explanation:

Food webs can be constructed to describe the species interactions. The fundamental purpose of food webs is to describe feeding relationship among species in a community.

The base of the food web in marine ecosystem is

evs - i insectivorous plants meaning of an ecosystem food chain and food web components of environment and their interdependencies

  1. Phytoplankton

  2. Zooplankton

  3. Kelp

  4. Fish

  5. Whales

Show answer
Correct Option: A
Explanation:

Phytoplanktons are the major producers and constitute the base of five level food web of the marine ecosystem. They convert chemical energy into the usable form of energy. Zooplanktons and other herbivores feed on phytoplanktons and these herbivores are themselves eaten by higher level consumers. Fishes and whales occupy higher level as consumers. Kelps occupy the base of the food web in kelp beds only. The correct answer is option A.