Ecology and Environment

JKPSC Assistant Professor (Botany) · Botany · 58 practice questions with answers and explanations: 9 Easy, 49 Medium, 0 Hard.

Sample questions

Sample Easy question 1

Sacred groves are examples of:

  1. Cryopreservation
  2. In-situ conservation
  3. Ex-situ conservation
  4. Seed banks
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Answer: B. Traditional protection of forest patches.

Sample Easy question 2

The pyramid of energy is always:

  1. Upright
  2. Square
  3. Spindle-shaped
  4. Inverted
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Answer: A. Energy decreases at each trophic level.

Sample Easy question 3

Xerophytes show which adaptation?

  1. Large thin leaves
  2. Aerenchyma in leaves
  3. Floating leaves
  4. Reduced leaf surface and thick cuticle
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Answer: D. They reduce transpiration.

Sample Medium question 4

Gause's competitive exclusion principle states that:

  1. Species never compete
  2. Niches do not matter
  3. All species can coexist
  4. Two species with the same niche cannot coexist
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Answer: D. He worked on Paramecium.

Sample Medium question 5

The fundamental niche is the:

  1. Competitor's niche
  2. Habitat of other species
  3. Niche actually occupied
  4. Full range of conditions in which a species can live
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Answer: D. The realised niche is smaller.

Sample Medium question 6

The logistic growth curve of a population is:

  1. S-shaped (sigmoid)
  2. Straight
  3. Zigzag
  4. J-shaped
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Answer: A. It levels off at the carrying capacity.

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