Unit 2 Terminology

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Across
  1. 8. containing harmful chemicals or organisms
  2. 9. to add material that will change the purity or usefulness of a substance
  3. 12. receives and treats human waste
  4. 14. machine that removes cotton seed from cotton fiber
  5. 17. one of a row of houses connected by common side walks
  6. 20. machine that cuts grain
  7. 22. organism that lives in or on another organism with no benefit to the host
  8. 23. not affected by
  9. 24. infection of the milk-secreting glands of cattle, goats, and other milk-production animals
  10. 26. widespread starvation
  11. 27. movement of genes from one cell to another
  12. 29. natural substance in blood that fights diseases and infections
  13. 31. source of power for belt-driven machines, as well as for pulling
  14. 32. any edible material used for animal feed
  15. 33. plant in which certain nitrogen-fixing bacteria use nitrogen gas from the air and convert it to nitrates that the plant can use as food
  16. 34. apartment building or unit in which the apartments are individually owned
  17. 36. less available than needed for optimum growth
  18. 37. a baking potato variety best adapted for growth in sandy vocanic soils
  19. 38. plow with a curved bottom that will turn prairie soils
Down
  1. 1. popular, easy-to-grow, summer flowering plant
  2. 2. liquid body waste
  3. 3. mating adults who have characteristics desired in the offspring
  4. 4. food made by boiling and crushing soybeans and letting it coagulate into curds
  5. 5. breed of turkey that weighs only 8 to 12 pounds at maturity
  6. 6. solid body waste
  7. 7. wire with sharp points used to discourage livestock from touching fences
  8. 10. popular potato variety of the 1930's
  9. 11. machine that removes ears of corn from stalks
  10. 13. machine that milks cows and goats
  11. 15. water that is free of harmful chemicals and disease causing organisms
  12. 16. plant or animal offspring from crossing two different species or varieties
  13. 18. in intense, narrow beam of light that is used to measure nutrient deficiencies in plants from an orbiting satellite
  14. 19. machine that is used to cut and thresh seed crops such as grain
  15. 21. a six-legged animal with three body segments
  16. 25. a can with contents under pressure
  17. 28. disease of poultry that costs growers nearly $300 million a year
  18. 30. process in which many countries became self-sufficient in food production
  19. 35. superior baking potato bred to grow well in the Northeast