photic zone		Trophic dynamics is the system of _______
density		________ are the organisms which live on, in, or near the seabed, also known as the benthic zone.
mixed zone		______ is the biological conversion of 1 or more carbon molecules and nutrients into organic matter using the oxidation of inorganic molecules
manganese		_______ _______ is the pelagic zone that contains the very deep benthic communities near the bottom of oceans
food web		The world gets energy from these
plankton		_________ is a layer within a body of water or air where the temperature changes rapidly with depth.
nekton		Rock concretions on the sea bottom
benthos		______ is the conversion of light energy into chemical energy by living organisms
photosynthesis		Discovered in 1810 by Sir Humphery Davy
pycnocline		________ also called food webs, food networks and/or trophic networks
evaporative		Another word for food chain
hydrothermal vent		________ is the saltiness or dissolved salt content of a body of water
trophic level		_______ is a grouping of living organisms that live in the water column of the ocean and freshwater lakes.
energy resources		The ratio of the amount of matter in an object compared to its volume
thermocline		_________ are any drifting organism that inhabits the pelagic zone of oceans, seas, or bodies of fresh water.
chemosynthesis		_____ _____ is the depth of the water whether in a lake or an ocean, that is exposed to sufficient sunlight for photosynthesis to occur
marine life zone		__________ salts
abyssal zone		A place in the ocean where a variety of aquatic life forms live
salinity		_______ is a rapid change in water density with depth.
gas hydrates		A _____ ______ is a fissure in a planet's surface from which geothermally heated water issues
food chain		____ ____ is a layer in which active turbulence has homogenized some range of depths