Chapter 4 : Secrets of the Soil

stems POTATO eyes arranged in a spiral.
cord_grass John Deere Plow Bunch and Sod-forming grasses (rhizomes or stolons)
symbiotic Grasshopper is PREDATOR/PARASITE
nitrogen_fixation Golden Bean (Thermopsis rhombifolia). James Woodworth nitrogen study. Cercis canadensis (Redbud) legume.
soil Eluviating horizon. Just discuss 3 soils: molli in middle; top is alfi, arid(warm, can be moist)
molli=soft Black Earth(cool: high elevation ND, MT); alfi=alu + fe still fertile; Shawnee National Forest
earthworms eat dirt: detritus
ants Ants and caterpillar: mutualism in action BBC-LifeInTheUndergrowth/1.2_TakingToTheAir 28:15-29:00 Lantern bug honeydew -> Moth This ant (Lasius neoniger) & aphids. Edward's Hairstreak & Formica integra.
Extrafloral nectar on leaf base microscopic glands.
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