Ecology Quiz 259 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. All of the different organisms interacting in a pond make up

Correct Answer: A) A community.

2. Without the Greenhouse Effect the Earth would be

Correct Answer: B) Cold.

3. Not eating too much or too little means we are eating in .....

Correct Answer: A) Moderation.

4. To measure population density, you must divide the number of individuals living in a defined space by the

Correct Answer: A) Area of the space.

5. An animal that eats other animals

Correct Answer: D) Carnivore.

6. The correct order of the organizational level is

Correct Answer: B) Organism, Population, Community, Ecosystem, and Biosphere.

7. All the ponds in an area dried up during a drought. Which organism is most affected by the drought?

Correct Answer: B) Frog.

8. An organism that makes its own food using the sun's energy.

Correct Answer: A) Producer.

9. All of the energy in the ecosystem comes from

Correct Answer: B) The sun.

10. Without bacteria in the ecosystem, what would happen?

Correct Answer: D) Dead materials would pile up.

11. An organism that can produce its own food through photosynthesis

Correct Answer: C) Autotroph.

12. Two or more members of a particular species living and interacting in the same area

Correct Answer: B) Population.

13. Net primary production in an ecosystem over a given period may be BEST defined as the total amount of

Correct Answer: D) New organic matter remaining after respiration and metabolism has been fuelled.

14. When organisms leave an ecosystem

Correct Answer: B) Emigration.

15. What does the term carrying capacity describe?

Correct Answer: D) The population size that the environment can sustain.

16. A ....., such as mushrooms, breaks down organic material.

Correct Answer: C) Decoposer.

17. Since frogs breathe through their skin, they do not easily absorb pollution

Correct Answer: B) False.

18. When nitrogen gas is turned in to a form that plants and animals can use, this is called:

Correct Answer: D) Nitrogen Fixation.

19. The place where an organism naturally lives and grows

Correct Answer: C) Habitat.

20. Increase-decrease

Correct Answer: B) Wrong.