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CET 12th Level — Ecology & Conservation MCQs

Practice 20 free ecology & conservation multiple choice questions for CET 12th Level exam. Instant answers with explanations in Hindi and English.

Master Ecology & Conservation under Ecology & Environment for CET 12th Level with our curated MCQ set. Every question follows real Rajasthan exam patterns. Switch between Hindi and English anytime.

CET 12th Level — Ecology & Environment — Ecology & Conservation

20 Questions • Instant results & explanations • Hindi & English

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Question 1 of 20

In the context of the Detritus Food Chain, which of the following acts as the primary link that transfers energy from dead organic matter to small carnivores?

Question 2 of 20

Which of the following is NOT an abiotic component mentioned in the context of an organism's habitat?

Question 3 of 20

Consider the following statements regarding 'Conservation': 1. It implies the mere preservation of natural resources in their pristine, untouched state. 2. It emphasizes the sustainable management of natural capital to yield benefits for both present and future generations. Which of the statements given above is/are correct?

Question 4 of 20

What is the primary condition required for a group of individuals to be classified scientifically as a 'Population'?

Question 5 of 20

Which of the following is considered the fundamental unit of ecological study, where scientists observe how physiology and behavior adapt to environmental changes?

Question 6 of 20

Match List-I (Levels of Ecological Organization) with List-II (Description) and select the correct answer using the codes given below: List-I A. Population B. Community C. Ecosystem D. Biome List-II 1. Structural and functional unit involving energy flow and nutrient cycling. 2. Regional unit characterized by major vegetation type in a specific climate zone. 3. Assemblage of interacting populations of different species sharing a habitat. 4. Group of individuals of the same species living in a specific geographical area.

Question 7 of 20

Unlike a grazing food chain, a Detritus Food Chain fundamentally begins its energy sequence with:

Question 8 of 20

According to Lindeman's 10% Law of energy transfer, what exactly accounts for the 90% of energy that is NOT assimilated into the biomass of the subsequent trophic level?

Question 9 of 20

Which of the following abiotic components acts as a direct structural link between the biotic and abiotic realms of an ecosystem?

Question 10 of 20

Consider the following statements regarding Ecological Succession: 1. Primary succession takes place in areas previously occupied by a community that was wiped out by a disturbance like a forest fire. 2. Lichens are considered pioneer species capable of initiating soil formation on bare rocks. Which of the statements given above is/are correct?

Question 11 of 20

Assertion (A): The Wildlife Protection Act and Forest Conservation Act are essentially ecological management tools. Reason (R): These acts require a scientific understanding of ecosystems to effectively manage natural capital and drive sustainable development. Select the correct code:

Question 12 of 20

Assertion (A): Maintaining ecological balance is purely an academic exercise with no real-world application. Reason (R): Ecological homeostasis governs practical daily necessities such as the availability of clean air, potable water, and agricultural stability. Select the correct option:

Question 13 of 20

Which specific ecological pyramid remains unequivocally upright under all environmental conditions without exception?

Question 14 of 20

Match List-I (Ecological Component) with List-II (Examples) correctly: List-I A. Inorganic substance B. Organic compound C. Climatic regime D. Producer List-II 1. Carbohydrates 2. Light intensity 3. Nitrogen 4. Algae

Question 15 of 20

Which ecological level is structurally defined by distinct energy flow and nutrient cycling?

Question 16 of 20

Why is the Pyramid of Biomass consistently inverted in deep aquatic ecosystems compared to terrestrial ecosystems?

Question 17 of 20

Within an ecosystem, 'Saprotrophs' are scientifically critical because they:

Question 18 of 20

Which of the following elements is classified under the 'climatic regimes' of an ecosystem's abiotic components?

Question 19 of 20

Why is the biological process of Secondary Succession typically much faster than Primary Succession?

Question 20 of 20

Which of the following statements profoundly characterizes the functional nature of Biogeochemical Cycles?

More Ecology & Environment Subtopics

Practice other subtopics under Ecology & Environment to strengthen your CET 12th Level preparation.