The Amazing UnderseaFood Web

这是一篇关于The Amazing UnderseaFood Web的思维导图。

The Amazing Undersea Food Web

• phytoplankton
  • specialty
    • have no roots
    • is free to float with the ocean currents
    • fond of sunlight
    • get food from photosynthesis
• the food web
  • tuna eat
• the twilight zone
  • 200m~1000m
  • how do animals down there feed
    • open there mouth and wait for things to get in
    • see snow
• the midnight zone
  • 1000m~5000m
  • animals see and communicate with each other by bioluminescence
  • abyssal zone
    • totally dark
    • covers much of the ocean floor
  • ocean trenches
    • have canyons and cracks of up to 10,000 meters
    • animals therre feed on bacteria
• 10kg of mackrerel eat
• 100kg of herring eat
• 1000kg of zooplankton eat
• 10,000kg of Phytoplankton