Ecology Quiz 175 (20 MCQs)

Quiz Instructions

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1. Which biome consists of very low precipitation and can be hot or cold?

Correct Answer: D) Desert.

2. A snake is eaten by a hawk. The hawk is the .....

Correct Answer: C) Predator.

3. If several species of carnivores are removed from an ecosystem, the most likely effect on the ecosystem would be:

Correct Answer: A) A decrease in stability among populations.

4. What is the basic unit of the study of nature

Correct Answer: B) Ecosystems.

5. Plants make their own food

Correct Answer: A) True.

6. What do Herbivores eat?

Correct Answer: A) Plants ONLY.

7. The study of interactions that occur among organisms in their environment.

Correct Answer: B) Ecology.

8. One way a population increases is if there is an increase in the

Correct Answer: A) Birth rate.

9. Organisms that cannot make their own food

Correct Answer: B) Consumer.

10. When dead plants decompose and nitrogen is returned to the soil, the interaction is between which two spheres?

Correct Answer: D) The biosphere and geosphere.

11. Imported animal species often disrupt an ecosystem because in their new environment, they will most likely

Correct Answer: C) Have no natural enemies.

12. A ..... holds an element or water for a long period.

Correct Answer: A) Reservoir.

13. TRUE or FALSE:Individuals whose unique characteristics are best suited for their environment tend to survive and produce offspring.

Correct Answer: A) True.

14. Which of the following is an advantage of solar energy?

Correct Answer: A) It will not run out for billions of years.

15. Energy increases as you move up the food pyramid (from bottom to top).

Correct Answer: B) False.

16. What does niche mean?

Correct Answer: A) The role of an organism in its habitat, or how it makes its living (how it gets its food, what it eats, etc.).

17. An ecological pyramid is:

Correct Answer: C) A diagram that shows the relative amounts of energy or matter within each trophic level in a food chain of food web.

18. Which of these organisms would you most expect to find on a small island that formed as a result of a volcanic two years prior?

Correct Answer: D) Lichen.

19. Any living thing

Correct Answer: A) Organism.

20. All of the following are biotic except .....

Correct Answer: B) Minerals.