Chapter 3 Review

1. CP Biology Chapter 3 Review

2. True or False • 1. An ecologist who is studying a group of ecosystems that have similar climates and are home to similar organisms is studying a community.

3. True or False • 2. Ecologists use tools such as binoculars and microscopes to model changes in the environment.

4. True or False • 3. Ecologists can make predictions using ecological models.

5. True or False • 4. Producers release carbon dioxide into the atmosphere duringthe process of photosynthesis.

6. True or False • 5. Clouds are formed in the sky when water evaporates.

7. True or False • 6. Animals that feed on plants are calledproducers.

8. True or False • 7. The passage of energy from one organism to another according to a particular feeding sequence is called a food chain.

9. True or False • 8. In an ecological pyramid, the biomass of living things increases at each higher level.

10. True or False • 9. Only about 10 percent of the energy in a trophic level is available to organisms at the next trophic level.

11. True or False • 10. Oxygen is important for ecosystems because it is used by plants during photosynthesis.

12. True or False • 11. Scientists classify the nitrogen, carbon, phosphorus, and water cycles as biogeochemical cycles.

13. True or False • 12. The burning of fossil fuels and photosynthesis are part of the phosphorus cycle.

14. True or False • 13. Aquatic ecosystems can receive a large input of a limiting nutrient from the runoff from heavily fertilized fields.

15. True or False • 14. A lake that is protected from receiving the runoff from a cultivated field is more likely to remain a healthy ecosystem.

16. True or False • 15. Seawater, sand on a beach, pebbles in the sand, and broken seashells are all examples of abiotic factors at a seashore.

17. 1. F, biome • 2. F, observe • 3. T • 4. F, oxygen • 5. F, condenses

18. 6. F, consumers • 7. T • 8. F, decreases • 9. T • 10. F, Carbon dioxide

19. 11. T • 12. F, carbon • 13. T • 14. T • 15. T