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Trophic levels in ecosystem are formed by

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Important Questions on Ecosystem

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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
A deer with energy reserves of 150kJ spends 54kJ in respiration, while 84kJ is excreted as faeces and urine. Based on this information, the efficiency of energy transfer from the deer eaten by a lion, will be
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Study the following graph of the metabolic rate of various terrestrial mammals as a function of their body mass and choose the correct option below.

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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
What fraction of the assimilated energy is used in respiration by the herbivores?
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Most animals that live in deep oceanic waters are:
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Identify the possible link 'M' in the following food chain:
Plant → Insect →M→ Snake → Eagle
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
If 20J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain?
plant → mice → snake → peacock
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Which ONE of the following options lists the primary energy source(s) for all forms of life on earth?
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
In an ecosystem, the population of:
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Of the total incident solar radiation of percentage photosynthetically Active Radiation (PAR) captured by the plants
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem

Match the trophic levels with their correct species examples in grassland ecosystem.

(a) Fourth trophic level (i) Crow
(b) Second trophic level (ii) Vulture
(c) First trophic level (iii) Rabbit
(d) Third trophic level (iv) Grass

Select the correct option.

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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
The mass of living material at a trophic level at a particular time is called:
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
The study of the energy transfer and relationships between all living organisms is known is
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Select the correct path of energy flow in an ecosystem-
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
The greatest biomass of autotrophs in the ocean is that of
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Which of the following is correct with respect to ecosystem?
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
If the carbon atoms fixed by producers already have passed through three species, the trophic level of the last species would be
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Which of the following is called as a detritivore?
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
In an ecosystem, which of the following shows a one-way passage?
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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem

The total amount of energy fixed (organic food) in an ecosystem (in producers) in unit time is maximum in which of these ecosystems?

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Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Stability of ecosystem depends upon