–carry air to underground parts through “aerenchyma”
example:black mangrove tree, cypress knees
Anchor roots on host stems
–Help to pull bulb underground
example: corms, water hyacinth,
•
–carry air to underground parts through “aerenchyma”
example:black mangrove tree, cypress knees
Anchor roots on host stems
–Help to pull bulb underground
example: corms, water hyacinth,
•“Typically” above-ground portion of plant
•Tend to grow away from pull of gravity
example: morning glory-covers fence or trellis, Ponderosa pijne grows toward the sunlight
Horizontal above-ground stems growing along surface, making new plants
ex: strawberries, grass
Characterized by large biodiversity in plants, animals, and insects and LOTS of manual labor, low chemical input, lots of recycling of matter
Characterized by low biodiversity (monocultures), high input of fertilizers, fuels, pesticides, irrigation, low requirement for human power.
1)Excess nutrients in water cause algae to grow
2)Algae die and decay through bacterial action
3)Bacterial population explodes cons