Ecology Quiz 73 (20 MCQs)

Quiz Instructions

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1. In an energy pyramid,

Correct Answer: A) The organisms in each level eat those in the level below them.

2. Which one is NOT a biotic factor?

Correct Answer: A) Water.

3. What is a Ecosystem

Correct Answer: D) A biological community of interacting organisms and their physical environment.

4. What is the name of the way organisms communicate by producing their own chemical products from their bodies:

Correct Answer: C) Allelopathy.

5. What factor of climate is dependent on how high you live above sea level?

Correct Answer: D) Elevation.

6. Animals get energy from eating other animals. In what ways do they use this energy?

Correct Answer: D) All of these.

7. What percent of energy is transferred from consumer to consumer in a food chain?

Correct Answer: B) 10%.

8. Gas that makes up 78% of our atmosphere.

Correct Answer: B) Nitrogen.

9. Is a dog an.....?

Correct Answer: A) Biotic factor.

10. A flea on a dog is a .....

Correct Answer: A) Parasite.

11. The roadrunner and the coyote relationship is that of?

Correct Answer: C) Parasitism.

12. An organism that breaks down dead organic matter and returns to the soil is called

Correct Answer: D) Decoposer.

13. What is the total amount of biotic material within an ecosystem?

Correct Answer: D) Biomass.

14. Animals from two different species utilize the same source of nutrition in one area. It is most accurate to say that the animals .....

Correct Answer: B) Will compete for food.

15. Some organisms use ..... to make food from chemicals.

Correct Answer: A) Chemosynthesis.

16. The science of describing, naming, and classifying organisms

Correct Answer: B) Taxonomy.

17. The goat has it on his head

Correct Answer: C) Horn.

18. How is water an important abiotic factor?

Correct Answer: D) Allows you to carry out life proecess.

19. How many mm is 20 cm?

Correct Answer: A) 200.

20. Define niche

Correct Answer: B) Role of organism.