AgriScience Midterm

2. Pathogenic entity consisting of nucleic acid and a protein sheath.
5. Organism that produces disease.
7. Large land area from which water flows, is absorbed, drained, and released.
12. Fruit grower or scientist.
13. Plant that lives frim year to year.
14. Water-bearing rock formation.
16. pH of more than 7.0.
18. Science of producing, processing, and marketing plant products.
20. Living organism that transmits a disease.
23. Practice of growing plants without soil.
26. Organism that is capable of breaking down dead plant and animal matter.
28. Mixing of air into water or soil.
29. Person’s occupation or profession.
30. Desirable proportions of nutrients and organisms to support plant growth
31. One who studies the cultivation of vegetables.
33. Drinkable water free of harmful chemicals and organisms.
34. Granular soil containing good balance of sand, silt, and clay.
36. Unit of hereditary material located on a chromosome.
37. Obtain nourishment from either live or decaying organic matter.
38. Pertaining to a particular season of the year.
39. pH of less than 7.0.
41. Commercial firms that have developed with or stem from agriculture.
44. Material placed on soil to prevent erosion and weeds.
45. Material that destroys infective agents such as bacteria and viruses.
47. Tree that has rootstock limiting growth to under 15 feet.
48. One-celled, microscopic organisms.
49. Exact duplicate.

1. Series of activities related to a single objective or enterprise.
3. Material that supplies nutrients for plants.
4. Neither acidic or alkaline.
6. Raising aquatic animals under controlled conditions.
8. Activities concerned with the production of plants and animals.
9. All the conditions, circumstances, and influences surrounding an organism.
10. Mixture of partially decayed organic matter.
11. Surrounding environment in which something functions and thrives.
15. Plant with its seeds enclosed in a pod or seed case.
17. The use of cells to produce products or processes.
19. Application of scientific principles to agriculture.
21. Plant grown from seed in a special container.
22. Natural volcanic glass material with water holding capabilities.
24. The biology of heredity.
25. Diseases that cannot be spread to other animals.
27. Diseases that can be spread by contact.
32. Plant that takes two growing seasons from seed to complete life cycle.
35. National intracurricular organization for students enrolled in agriscience programs.
39. Plant with a life cycle that is completed in one growing season.
40. Tree that has rootstock limiting growth to under 10 feet.
42. Weather conditions of a specific region.
43. Growing plants as roots hang in air and are misted with nutrient solution.
46. Addition of water to plants to supplement rain and or snow.