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Deep sea fish
Deep sea fish is a term for
fish that live below the
photic zone of the ocean.
Examples include the
lanternfish, flashlight
fish, cookie-cutter shark,
bristlemouths, and
anglerfish. The fish of the
... > full story
Coral bleaching
Coral bleaching results when
the symbiotic zooxanthellae
(single-celled algae) are
released from the original
host coral organism due to
stress. The corals that form
the structure of the great
reef ecosystems of tropical
... > full story
R/K selection theory
In ecology, r/K selection
theory relates to the
selection of traits (in
organisms) that allow
success in particular
environments. In unstable or
unpredictable environments
r-selection predominates, as
... > full story
Food chain
Food chains and food webs
and/or food networks
describe the feeding
relationships between
species in a biotic
community. In other words,
they show the transfer of
material and energy from one
... > full story
Browse Reference Articles
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Prokaryote
Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular). This set of characteristics is distinct from ... > more -
Microorganism
A microorganism or microbe is an organism that is so small that it is microscopic (invisible to the naked eye). Microorganisms are often illustrated using single-celled, or unicellular organisms; ... > more -
Trophic level
In ecology, the trophic level is the position that an organism occupies in a food chain - what it eats, and what eats it. Wildlife biologists look at a natural "economy of energy" that ultimately ... > more -
Antifreeze protein
Antifreeze proteins (AFPs) and Antifreeze glycoproteins (AFGPs) are produced as a specialised adaptation by certain fish, insects, plants and bacteria. AFPs and AFGPs are capable of lowering the ... > more -
Marine biology
Marine biology is the scientific study of the plants, animals, and other organisms that live in the ocean. Given that in biology many phyla, families and genera have some species that live in the sea ... > more -
Permian-Triassic extinction event
The Permian-Triassic (P-T or PT) extinction event, sometimes informally called the Great Dying, was an extinction event that occurred approximately 251.0 million years ago (mya), forming the boundary ... > more -
Groundwater
Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of geologic formations. A formation of rock/soil is called an aquifer when it can yield a useable ... > more
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