ECOLOGY MCQs

1. Ecology deals with the

a) environment

b) living things

c) relationship between ling and non-living components

d) none of these

2. The energy pyramid in an ecosystem is …

a) always inverted

b) may be inverted

c) always upright

d) none of these

3. Aquatic ecosystem upper layer contains …

a) benthos

b) nekton and benthos

c) plankton and nekton

d) plankton

4. The natural place where the communities or organisms is …

a) habitat

b) niche

c) biome

d) none of these

5. Induction of flowers by cold treatment is effective in …

a) hot countries

b) tropical countries

c) cold countries

d) none of these

6. A mutual association beneficial for both the partner is …

a) mutualism/ symbosis

b) commensalism

c) amenasalism

d) none of these

7. Which wil not promote co-evolution?

a) mutualism

b) amensalism

c) commensalism

d) asymbiosis

8. Rooted submerged plants are known as …

a) lemna

b) hydrilla

c) typha

d) nymphea

9. Which one is an example of ambitious plants?

a ) leticels

b ) hydrilla

c) wollfia

d) polygonum

10. Marshy plants are known as …

a) hydrophytes

b) lemphocytes

c) helophytes

d) mesophytes

11. Deforestation will cause …

a) heavy rainfall

b) less rainfall

c) no rainfall

d) none of these

12. The main source of energy in the ecosystem is …

a) ATP

b) DNA

c) RDNA

d) sunlight

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