Question

4. What occurs to a body of water when there is runoff from agricultural fields? 5. Which population experiences growth referred to as a "bloom" when excess nutrients enter a body of water? After excess nutrients cause algae to overgrow and then die, what causes the fish to die? What do we call the number of different microorganisms observed and their relative 6. 7. abundance in the hay infusion culture? 8. What chemical was used to simulate the effect of acid rain on a hay infusion culture? 9. What does an unfavorable pH adversely affect that inhibits seed germination 10. In the Experimental Procedure on the effect of acid rain on seed germination, if 18 of the sunflower seeds germinated in the 1% vinegar solution, what percent germinated? 11. What kind of animal is Gammarus? 12. 13. What will Daphnia do that might prevent cultural eutrophication from occurring? Are there more or fewer algal cells present in a water sample as the absorption of light decreases? What element from the Silver Lake condominiums' sewage output contributes to the increased algal population? 14. ought Questions . A "dead zone" forms where the Mississippi River empties into the Gulf of Mexico due to nutrient runoff in river that is carried to the Gulf. Explain how the dead zone forms and what impact it may have on humans. Pollutants often affect the producers in an ecosystem first food chain to illustrate your understanding of the impact pollutants have after they enter an ecosystem. and then have far-ranging effects. Use acid rain and the cultural eutrophication case study illustrates the need to have a balance of population size Describe how an ecosystem. Laboratory 25 Effects of Pollution on Ecosystems

Answer 1