HARD
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Select the CORRECT difference between standing crop and standing state.

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Important Questions on Ecosystem

MEDIUM
Biology>Ecology>Ecosystem>Flow of Energy
Describe an inverted pyramid of biomass with the help of an example.
MEDIUM
Biology>Ecology>Ecosystem>Flow of Energy
Which of the following statements is not correct?
EASY
Biology>Ecology>Ecosystem>Flow of Energy
What is a trophic level in an ecosystem ? What is ‘standing crop’ with reference to it?
EASY
Biology>Ecology>Ecosystem>Flow of Energy
Define standing crop.
EASY
Biology>Ecology>Ecosystem>Flow of Energy
In an ecosystem, the population of:
EASY
Biology>Ecology>Ecosystem>Flow of Energy

Give a reason for each of the following:

The shape of the pyramid of biomass in an aquatic ecosystem is inverted.

EASY
Biology>Ecology>Ecosystem>Flow of Energy
Choose the correct statements related to ecological pyramids?
(i) The trophic relationship is expressed in terms of numbers, biomass or energy arranged one on the top of its lower trophic level, resulting in a pyramid shape.
(ii) The base of each pyramid represents producers, while the apex represents the top order consumers.
(iii) The pyramid of biomass in sea is generally upright.
(iv) In the case of parasite food chain, the pyramid of number is inverted.
(v) Some species belonging to two or more trophic levels is not limitation of ecological pyramid.
EASY
Biology>Ecology>Ecosystem>Flow of Energy
State what ‘standing crop’ of a trophic level represents.
HARD
Biology>Ecology>Ecosystem>Flow of Energy
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.

Question Image
EASY
Biology>Ecology>Ecosystem>Flow of Energy
Which of the following ecological pyramids is generally inverted?
EASY
Biology>Ecology>Ecosystem>Flow of Energy
The mass of living material at a trophic level at a particular time is called:
EASY
Biology>Ecology>Ecosystem>Flow of Energy

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.

EASY
Biology>Ecology>Ecosystem>Flow of Energy
What is ecological pyramid ? Explain different types of ecological pyramid with diagram
HARD
Biology>Ecology>Ecosystem>Flow of Energy
What does an ecological pyramid represent? State any two limitations that these pyramids have.
HARD
Biology>Ecology>Ecosystem>Flow of Energy

What are ecological pyramids. What are its types?

EASY
Biology>Ecology>Ecosystem>Flow of Energy
Nowadays bio-diesel is used in transportation vehicles as an alternate to diesel. Write two advantages of this measure.
HARD
Biology>Ecology>Ecosystem>Flow of Energy
What are ecological pyramids? Describe briefly different types of ecological pyramids with suitable diagrams.
MEDIUM
Biology>Ecology>Ecosystem>Flow of Energy
Which of the following statements is incorrect?
EASY
Biology>Ecology>Ecosystem>Flow of Energy
Of the total incident solar radiation of percentage photosynthetically Active Radiation (PAR) captured by the plants
EASY
Biology>Ecology>Ecosystem>Flow of Energy
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