Ecology - Ecosystem

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Q1. In a food chain, which of the following is a primary consumer? (2019)

Solution:

A rabbit is a primary consumer as it feeds on plants (producers).

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Q2. Which of the following best describes a trophic level? (2023)

Solution:

A trophic level refers to the position an organism occupies in a food chain or food web, indicating its role in energy transfer.

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Q3. Which of the following cycles is essential for the growth of plants? (2021)

Solution:

All of the above cycles (water, carbon, and nitrogen) are essential for the growth of plants.

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Q4. What is the primary process by which energy enters an ecosystem? (2022)

Solution:

Photosynthesis is the primary process by which energy from sunlight is converted into chemical energy by plants.

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Q5. Which of the following best describes a food chain? (2023)

Solution:

A food chain is a linear sequence of organisms through which energy flows, from producers to consumers.

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Q6. Which of the following best describes a food web? (2023)

Solution:

A food web is a complex network of feeding relationships that illustrates how different organisms are interconnected in an ecosystem.

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Q7. In an ecosystem, which of the following organisms is known as a primary producer? (2021)

Solution:

Plants are primary producers as they convert sunlight into chemical energy through photosynthesis.

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Q8. What is the process by which nutrients are recycled in an ecosystem? (2020)

Solution:

Decomposition is the process by which nutrients are recycled in an ecosystem, breaking down dead organic matter.

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Q9. Which of the following is a biotic component of an ecosystem? (2021)

Solution:

Plants are biotic components of an ecosystem, while soil, water, and air are abiotic components.

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Q10. What is the process by which energy is transferred from one trophic level to another? (2020)

Solution:

The food chain illustrates how energy is transferred from one trophic level to another in an ecosystem.