Ecology Quiz 274 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. What is a defense strategy?

Correct Answer: C) A way to keep something from being eaten by a predator.

2. ..... are all organisms that break down dead/dying matter, and release carbon, nitrogen, phosphorous, etc. into their surroundings

Correct Answer: B) Decomposers.

3. Which level of organization is more complex than a population and less complex than an ecosystem?

Correct Answer: C) Community.

4. Carrying Capacity:definition

Correct Answer: D) The maximum number of individuals an environment can support.

5. All the biotic and abiotic factors in an area

Correct Answer: C) Ecosystem.

6. Carnivores, herbivores, omnivores, and scavengers are all examples of .....

Correct Answer: B) Consumers.

7. All organisms in a community

Correct Answer: C) Population.

8. What occurs when ice and snow change directly to water vapor?

Correct Answer: A) Sublimation.

9. Read the definition:It is when and animal or plant have to adjust to new surroundings or a new situation.

Correct Answer: A) Adapt.

10. What form of light from the Sun is important to warming Earth?

Correct Answer: B) Infrared.

11. Which of the following is an example of an abiotic limiting factor on population size?

Correct Answer: A) Water availability.

12. As you move up an energy pyramid, the amount of energy .....

Correct Answer: C) Decreases.

13. Nonliving factors in an environment are .....

Correct Answer: B) Abiotic.

14. The movement of carbon dioxide and oxygen on Earth by the processes of respiration and photosynthesis.

Correct Answer: A) Carbon Dioxide-Oxygen Cycle.

15. Why is matter not lost as it passes through an ecosystem?

Correct Answer: A) Matter is recycled. This recycling involves specific interactions between the biotic and abiotic factors in an ecosystem.

16. A relationship between two species in which both species benefit

Correct Answer: A) Mutualism.

17. Anything that prevents a population from growing larger.

Correct Answer: A) Limiting factor.

18. What do antibodies do?

Correct Answer: A) Bind and flag infectious agents.

19. A one-way relationship where one species benefits at the expense of another is called ..... ?

Correct Answer: C) Parasitism.

20. Which of the following is the most simple level of ecological organization?

Correct Answer: B) An individual or species.