Zone deeper than 4000 meters
bathypelagic
Storms on the sun contribute to droughts on an 11 year cycle
Sunspots
Chemical reaction in the organism releases light without producing any heat energy
bioluminescence
Zone 200-1000 m deep
Mesopelagic
Inter-tidal zone
Plates used by blue and gray whales to filter out krill and other prey
baleen plate
Plates used by blue and gray whales to filter out krill and other prey
Little Ice age
Algae responsible for Red Tides
dinoflagellates
The deepest part of the ocean (deepest part of the Mariana Trench)
Challenger Deep in the Mariana trench