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.

(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)

(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

EASY

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When food energy passes from producers to consumers,

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Important Questions on Ecosystem

HARD

Biology>Ecology>Ecosystem>Ecological Pyramids

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>Ecological Pyramids

Identify the possible link 'M' in the following food chain:
Plant

\to

Insect

\to

M

\to

Snake

\to

Eagle

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

In an ecosystem, the population of:

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

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.

HARD

Biology>Ecology>Ecosystem>Ecological Pyramids

What type of ecological pyramid would be obtained with following data?
Secondary consumer : 120 g
Primary consumer : 60 g
Primary producer : 10 g

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

What fraction of the assimilated energy is used in respiration by the herbivores?

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

Of the total incident solar radiation of percentage photosynthetically Active Radiation

(PAR)

captured by the plants

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

What is ecological pyramid ? Explain different types of ecological pyramid with diagram

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

The mass of living material at a trophic level at a particular time is called:

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

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

\to

mice

\to

snake

\to

peacock

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

The tropic relationship is expressed in terms of numbers: biomass or energy arranged one on the top of its lower tropic level, resulting in a pyramidal shape. In case of a parasitic food chain. the pyramid number is _________

MEDIUM

Biology>Ecology>Ecosystem>Ecological Pyramids

Which of the following statements is incorrect?

MEDIUM

Biology>Ecology>Ecosystem>Ecological Pyramids

Describe an inverted pyramid of biomass with the help of an example.

EASY

Biology>Ecology>Ecosystem>Ecological Pyramids

Which ONE of the following options lists the primary energy source(s) for all forms of life on earth?

HARD

Biology>Ecology>Ecosystem>Ecological Pyramids

What does an ecological pyramid represent? State any two limitations that these pyramids have.