The many overlapping food chains in an ecosystem make up a(n) a. feeding level b. energy pyramid

1. The many overlapping food chains in an ecosystem make up a(n) a. feeding level b. energy pyramid c. niche d. food web

2. The step in the water cycle in which water vapor becomes liquid water is a. precipitation b. condensation c. nitrogen fixation d. recycling

3. The study of where organisms live is called a. ecology b. dispersal c. biogeography d. climatology

4. The very slow movements of the continents is called a. biogeography b. continental drift c. dispersal d. creep

5. Which of these consumers is a herbivore? spider b. lion c. deer d. snake

6. An organism that makes it’s own food is called a. scavenger b. consumer c. decomposer d. producer

7. Consumers that eat both plants and animals are called a. carnivores b. herbivores c. omnivores d. scavengers

8. In which process do producers use carbon from carbon dioxide to produce other carbon-containing molecules? a. nitrogen cycle b. water cycle c. precipitation d. photosynthesis

9. If a kestrel eats a mouse that eats grass, the kestrel is a(n) a. second-level consumer b. decomposer c. first-level consumer d. producer

10. What do producers release as a result of photosynthesis? a. nitrogen b. hydrogen c. carbon dioxide d. oxygen

11. Which of these is NOT an example of precipitation? a. groundwater b. rain c. snow d. hail

12. In an energy pyramid, which level has the most available energy? a. second-level consumer b. third-level consumer c. producer level d. first-level consumer

13. The first organism in a food chain is always a(n) a. producer. b. consumer. c. carnivore. d. herbivore.

14. Organisms that were brought by humans from one part of the world to another are a. native species b. parasites c. exotic species d. endangered species

15. The typical weather pattern in an area over a long period of time is called a. climate b. precipitation c. weather d. dispersal

16. Some bacteria that fix nitrogen live in bumps on the roots of certain plants. These bumps are called a. legumes b. starches c. nodules d. droplets

17. Vultures, which feed on the bodies of dead organisms, are a. first-level consumers b. scavengers c. producers d. herbivores

18. In which process do molecules of liquid water absorb energy and change into the gas state? a. evaporation b. condensation c. precipitation d. recycling

19. The ocean prevents the Australian kangaroo from dispersing throughout the world. The ocean is an example of which type of limit to dispersal? a. competition b. climate c. a physical barrier d. an exotic species

20. Which of the following is NOT an example of dispersal? a. a squirrel living in a forest on a mountain b. a dog bringing home sticky plant burs on its fur c. an insect being carried down a river on a floating leaf

21. Organisms that capture the energy of sunlight to make food are called producers.A. TrueB. False

22. Second level consumers may be either carnivores or omnivores.A. TrueB. False

23. In an energy pyramid, the available energy increases at each feeding level compared to the level below.A. TrueB. False

24. Dandelions are a native species in the U.S. because they were brought from Europe by the colonists.A. TrueB. False