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USAT M Entry Test /
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Ecosystem /
Quiz 1

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HEC ETC - USAT M Entry Test - Biology - Ecosystem - Quiz 1

Practice 10 high yield MCQs on Biology from Chapter Ecosystem for USAT M Entry Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 1 of the series.

1. What are the living components of an ecosystem called?

Abiotic (non-living)
Biotic (living)
Both
Neither

2. What are the non-living components of an ecosystem called?

Biotic (living)
Both
Abiotic (non-living)
Neither

3. What are producers and consumers in an ecosystem?

Producers only
Consumers only
Neither
Producers and consumers

4. What is the difference between habitat and niche?

Habitat (place), niche (role)
Habitat (role), niche (place)
Both are the same
Unrelated

5. What is a food chain?

Linear sequence of energy transfer
Complex network of feeding relationships
Ecological pyramid
Trophic level

6. What is the correct order of trophic levels in a food chain?

Consumers, producers, decomposers
Producers, primary consumers, secondary consumers, tertiary consumers
Decomposers, producers, consumers
Primary consumers, producers, secondary consumers

7. What percentage of energy is transferred from one trophic level to the next?

1%
50%
10%
100%

8. What role do decomposers play in an ecosystem?

Producers
Consumers
Not part of ecosystem
Decomposers

9. What is the ultimate source of energy for most ecosystems?

The sun
Geothermal energy
Chemical energy
Nuclear energy

10. Why is a food web more accurate than a food chain?

Less accurate than a food chain
More accurate than a food chain
Same as a food chain
Unrelated

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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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