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The pyramid of energy in an open ocean is

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Important Questions on Ecosystem

EASY
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
Define standing crop.
MEDIUM
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
Describe an inverted pyramid of biomass with the help of an example.
EASY
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids

Give a reason for each of the following:

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

EASY
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
State what ‘standing crop’ of a trophic level represents.
HARD
Biology>Ecology and Environment>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
HARD
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids

What are ecological pyramids. What are its types?

HARD
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
What does an ecological pyramid represent? State any two limitations that these pyramids have.
MEDIUM
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
Which one of the following has the largest population in a food chain?
HARD
Biology>Ecology and Environment>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 and Environment>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 and Environment>Ecosystem>Ecological Pyramids
What are ecological pyramids? Describe briefly different types of ecological pyramids with suitable diagrams.
MEDIUM
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
Which of the following statements is incorrect?
EASY
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
Nowadays bio-diesel is used in transportation vehicles as an alternate to diesel. Write two advantages of this measure.
EASY
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
What is ecological pyramid ? Explain different types of ecological pyramid with diagram
HARD
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
If the age pyramid is triangle then choose correct answer from the given options.
MEDIUM
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids

Given below is data showing number of individuals and dry weight of different trophic levels in a grassland ecosystem. Construct:

Pyramid of number

Trophic Level Number of individuals Dry weight (Kg m-2)
Primary Producer 5,84,2000 809
Primary consumer 7,08,000 37
Secondary consumer 3.54,000 11
Tertiary consumer 3 1.5
MEDIUM
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids

Given below is data showing number of individuals and dry weight of different trophic levels in a grassland ecosystem. Construct:

Pyramid of Biomass

Trophic Level Number of individuals Dry weight (Kg m-2)
Primary Producer 5,84,2000 809
Primary consumer 7,08,000 37
Secondary consumer 3.54,000 11
Tertiary consumer 3 1.5
EASY
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
What is a trophic level in an ecosystem ? What is ‘standing crop’ with reference to it?
MEDIUM
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
Which of the following statements is not correct?
EASY
Biology>Ecology and Environment>Ecosystem>Ecological Pyramids
Which of the following ecological pyramids is generally inverted?