Agriscience Chapter 2

2. an intense, narrow beam of light that is used to measure nutrient deficiencies in plants from an orbiting satellite.
4. a natural substance in blood that fights diseases and infections.
7. organism that lives in or on another organism with no benefit to the host.
9. machine that milks cows and goats.
13. machine that removes ears of corn from stalks.
14. machine that cuts grain.
15. apartment building or unit in which the apartments are individually owned.
17. widespread starvation.
18. one of a row of houses connected by common side walls.
19. machine that is used to cut and thresh seed crops such as grain.
20. food made by boiling and crushing soybeans and letting them coagulate into curds.
21. any edible material used for animal feed.
22. machine that removes cotton seed from cotton fiber.
24. containing harmful chemicals or organisms.

1. movement of genes from one cell to another.
3. mating adults who have characteristics desired in the offspring.
5. plant or animal offspring from crossing two different species or varieties.
6. a baking potato variety best adapted for growth in sandy volcanic soil.
8. receives and treats human waste.
10. popular potato variety of the 1930s.
11. process in which many countries became self-sufficient in food production.
12. 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.
13. to add material that will change the purity or usefulness of a substance.
16. plow with a curved bottom that will turn prairie soils.
23. superior baking potato bred to grow well in the Northeast.