the "bump" of water on the side of the Earth closest to the moon
a tidal pattern with one high tide and one low tide each lunar day
Having two high tides and two low tides each day.
a steady flow (usually from natural causes)
surface ocean current
a continuous horizontal flow of water at or near ocean's surface driven by prevailing winds
deep ocean current
steady flow of surface ocean water in a prevailing direction
the branch of medical science that studies viruses and viral diseases
fission into two organisms approximately equal in size
predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll
bacteria that synthesize organic compounds, using energy derived from the oxidation of organic or inorganic materials without the aid of light.
Carbon metabolism in bacteria is either heterotrophic, where organic carbon compounds are used as carbon sources, or autotrophic, meaning that cellular ...
small particles of organic biogenic marine sediment, including the remains of organisms, faecal matter, and the shells of planktonic oganisms, that slowly drift down to the sea floor
Any of a group of microorganisms that resemble bacteria but are different from them in certain aspects of their chemical structure, such as the composition of their cell walls.
the taxonomic kingdom of lower plants
reproduction of some unicellular organisms (such as yeasts) by growth and specialization followed by the separation by constriction of a part of the parent
any of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rocks
microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica
single-celled life-forms characterized by an irregular shape
plant growing in the sea, especially marine algae
It's the depth where light reaches a level where oxygen from a photosynthesizing organism equals that consumed by its respiration.