Biology Multiple Choice Questions and Answers for Different Competitive Exams

Multiple Choice Questions on Ecological Pyramids

MCQ on Ecological Pyramids

1. The pyramid of numbers is inverted in the case of
a) parasitic food chain
b) Grassland ecosystem
c) Forest ecosystem
d) lake ecosystem

2. The concept of ecological pyramid was first proposed by
a) E.P. Odum
b) A.G. Tansley
c) Juday
d) Charles Elton

3. The pyramid of energy in terrestrial ecosystem is
Pyramid of energy
a) upright
b) inverted
c) spindle shaped
d) irregular
4. Which of the following ecological pyramid is always upright?
a) Pyramid of energy
b) Pyramid of number
c) Pyramid of biomass
d) none of these

5. The pyramid of numbers in a single tree is
a) upright
b) inverted
c) spindle shaped
d) none of these

6. A graphic representation of number of individuals of different species belonging to each trophic level in a an ecosystem is known as
a) ecological pyramid
b) pyramid of biomass
c) pyramid of number
d) pyramid of energy

7. The pyramid of biomass is inverted in
a) forest ecosystem
b) grassland ecosystem
c) fresh water ecosystem
d) tundra

8. In pond ecosystem, the pyramid of biomass is
a) upright
b) inverted
c) spindle shaped
d) none of these

9. In grassland ecosystem, the pyramid of biomass is
a) upright
b) inverted
c) spindle shaped
d) none of these

10. Which of the following statement is incorrect regarding ecological pyramids
a) The pyramid of energy is inverted in ocean ecosystem
b) The pyramid of biomass is inverted in aquatic ecosystem
c) The pyramid of numbers is upright in grass land ecosystem
d) The pyramid of biomass is upright in grass land ecosystem
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Answers:
1. a) parasitic food chain
2. d) Charles Elton
3. a) upright
4. a) Pyramid of energy
5. c) spindle shaped
6. c) pyramid of number
7. c) fresh water ecosystem
8. b) inverted
9. a) upright
10. a) The pyramid of energy is inverted in ocean ecosystem

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