the process which uses light energy to synthesize molecules rich stored energy
primary procedures or autotrophs
photosynthetic and chemosynthetic organisms which ones make their own food
labeling organisms by their position on a who eats whom feeding hierarchy
any aspect of the physical environment that affects living organisms
biologically generated aspects of the environment
too much or too little of a single factor can adversely affect the function of an organism
uppermost layer of seawater lit by the sun
the permanently dark layer of seawater beneath the photic zone
most of the biological productivity of the ocean occurs in the upper part of the photic zone
below the euphotic zone
energy-releasing reactions proceed within the organism, increases with temperature
the majority of the marine organisms are "cold blooded", having internal temperatures that stay very close to that of their surroundings
"warm blooded", a few complex animals
near shore over the continental shelf
beyond the continental shelf
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