Diatoms reproduce by cell division.
uppermost layer of the water lit by sun
uppermost part of the photic zone where phytoplankton capture more energy than they use to stay alive.
no light, perpetual darkness
show feeding relationships and flow of energy through biological communities
a form of snail without a shell, although some do secrete tiny shells composed of aragonite (a type of calcium carbonate)
An interesting characteristic of these primary consumers is that they filter phytoplankton from water pumped through their bodies.
Many scientists consider coral reefs to be one massive, ?symbiotic super-organism? because of the numerous intricate interspecies relationships found within this remarkable ecosystem.
dinoflagellates that live within the outer tissues of coral polyps.
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