ECOLOGY EXAMINATION QUESTIONS AND CORRECT
ANSWER WITH EXPLANATION GRADED A+ STUDY GUIDE
SOUTHERN NEW HAMPSHIRE UNIVERSITY
1. Ecology is the study of:
A. Interactions between organisms and their environment
B. Rocks and minerals
C. Human anatomy only
D. Weather forecasting only
Answer: A
Rationale: Ecology examines relationships among organisms and surroundings.
2. An organism’s role in an ecosystem is called its:
A. Niche
B. Habitat
C. Population
D. Biome
Answer: A
Rationale: Niche describes functional role and interactions.
3. The place where an organism lives is its:
A. Habitat
B. Community
C. Biosphere
D. Niche
Answer: A
Rationale: Habitat is the physical environment occupied.
4. A group of organisms of the same species in one area is called a:
A. Population
B. Community
C. Ecosystem
D. Biome
Answer: A
Rationale: Population consists of one species.
5. A community includes:
A. All populations in an area
, B. One species only
C. Abiotic factors only
D. One organism only
Answer: A
Rationale: Communities contain interacting populations.
6. An ecosystem includes:
A. Living and nonliving components
B. Animals only
C. Plants only
D. Water only
Answer: A
Rationale: Ecosystems include biotic and abiotic factors.
7. The biosphere refers to:
A. All regions of Earth where life exists
B. The atmosphere only
C. Oceans only
D. Forests only
Answer: A
Rationale: Global zone supporting life.
8. Abiotic factors are:
A. Nonliving environmental components
B. Living organisms only
C. Plants only
D. Animals only
Answer: A
Rationale: Include temperature, water, soil, and light.
9. Biotic factors are:
A. Living components of ecosystems
B. Nonliving factors only
C. Rocks only
D. Climate only
Answer: A
Rationale: Organisms in the environment.
10. Producers are organisms that:
A. Make their own food
, B. Eat plants only
C. Eat animals only
D. Decompose waste
Answer: A
Rationale: Autotrophs produce organic matter.
11. Photosynthesis converts:
A. Light energy into chemical energy
B. ATP into sunlight
C. Oxygen into glucose
D. Proteins into carbohydrates
Answer: A
Rationale: Plants capture solar energy.
12. Consumers obtain energy by:
A. Eating other organisms
B. Producing sunlight
C. Absorbing rocks
D. Making minerals
Answer: A
Rationale: Heterotrophs rely on food sources.
13. Herbivores feed mainly on:
A. Plants
B. Animals
C. Fungi
D. Bacteria
Answer: A
Rationale: Primary consumers eat producers.
14. Carnivores feed mainly on:
A. Animals
B. Plants
C. Algae
D. Minerals
Answer: A
Rationale: Meat-eating consumers.
15. Omnivores consume:
A. Both plants and animals
ANSWER WITH EXPLANATION GRADED A+ STUDY GUIDE
SOUTHERN NEW HAMPSHIRE UNIVERSITY
1. Ecology is the study of:
A. Interactions between organisms and their environment
B. Rocks and minerals
C. Human anatomy only
D. Weather forecasting only
Answer: A
Rationale: Ecology examines relationships among organisms and surroundings.
2. An organism’s role in an ecosystem is called its:
A. Niche
B. Habitat
C. Population
D. Biome
Answer: A
Rationale: Niche describes functional role and interactions.
3. The place where an organism lives is its:
A. Habitat
B. Community
C. Biosphere
D. Niche
Answer: A
Rationale: Habitat is the physical environment occupied.
4. A group of organisms of the same species in one area is called a:
A. Population
B. Community
C. Ecosystem
D. Biome
Answer: A
Rationale: Population consists of one species.
5. A community includes:
A. All populations in an area
, B. One species only
C. Abiotic factors only
D. One organism only
Answer: A
Rationale: Communities contain interacting populations.
6. An ecosystem includes:
A. Living and nonliving components
B. Animals only
C. Plants only
D. Water only
Answer: A
Rationale: Ecosystems include biotic and abiotic factors.
7. The biosphere refers to:
A. All regions of Earth where life exists
B. The atmosphere only
C. Oceans only
D. Forests only
Answer: A
Rationale: Global zone supporting life.
8. Abiotic factors are:
A. Nonliving environmental components
B. Living organisms only
C. Plants only
D. Animals only
Answer: A
Rationale: Include temperature, water, soil, and light.
9. Biotic factors are:
A. Living components of ecosystems
B. Nonliving factors only
C. Rocks only
D. Climate only
Answer: A
Rationale: Organisms in the environment.
10. Producers are organisms that:
A. Make their own food
, B. Eat plants only
C. Eat animals only
D. Decompose waste
Answer: A
Rationale: Autotrophs produce organic matter.
11. Photosynthesis converts:
A. Light energy into chemical energy
B. ATP into sunlight
C. Oxygen into glucose
D. Proteins into carbohydrates
Answer: A
Rationale: Plants capture solar energy.
12. Consumers obtain energy by:
A. Eating other organisms
B. Producing sunlight
C. Absorbing rocks
D. Making minerals
Answer: A
Rationale: Heterotrophs rely on food sources.
13. Herbivores feed mainly on:
A. Plants
B. Animals
C. Fungi
D. Bacteria
Answer: A
Rationale: Primary consumers eat producers.
14. Carnivores feed mainly on:
A. Animals
B. Plants
C. Algae
D. Minerals
Answer: A
Rationale: Meat-eating consumers.
15. Omnivores consume:
A. Both plants and animals
