Unit 8 Vocabulary

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Across
  1. 3. pollution that comes from a direct point like a sewage or drainage system
  2. 6. COMBINATION of pollutants from a large area
  3. 7. Low nutrient levels, high dissolved oxygen levels
  4. 8. Water whose oxygen concentrations are below two milligrams per liter
  5. 11. selective absorption and concentration of elements/compounds by cells in an organism
  6. 12. organic chemicals that are stable and made of carbon, can cause health problems
  7. 15. When coral polyps expel their symbiotic algae resulting in a white appearance
  8. 17. Protozoa carried by mosquitos, kills millions each year
  9. 20. virus carried by mosquitos and can be deadly
  10. 22. Any hormone that mimics or interferes with the normal actions of hormones in the body
  11. 23. Low oxygen areas in the earth’s oceans and lakes caused by pollution and other factors
  12. 24. Fat soluble substance that weakens the immune system
  13. 25. How much dissolved oxygen remains in a body of water after adding organic pollutants
Down
  1. 1. gradual increase in the concentration of phosphorous, nitrogen and other plant materials in an aging aquatic system
  2. 2. increase in concentration of substances per unit of body tissue that occurs in successively higher trophies levels
  3. 4. Insecticide banned in the U.S. for causing birth defects, as well as other health issues in humans and animals
  4. 5. Range of environmental conditions that are survivable for a species
  5. 9. bacteria that damages lungs
  6. 10. bacteria in water that causes diarrhea and death, found in developing countries w/o access to clean drinking water
  7. 13. a form of pneumonia/lung damage, spread by breathing in virus
  8. 14. mosquitos-transmitted virus that causes birth defects such as a small head
  9. 16. when heated water is discharged into bodies of water
  10. 18. dose of a substance that is lethal to 50% of the population of a particular species
  11. 19. virus that cause respiratory problems, camels & bats might be the vector
  12. 21. Desribes the effect on an organism or mortality rate in a population based on the dose of a particular species