Examlex
Which of the following refers to a correlation between two variables?
Ecotone
A transition area between two biological communities where different ecosystems meet and integrate, often rich in species diversity.
Marine Snow
The organic debris (plankton, dead organisms, fecal material, etc
Aphotic Region
The lower layer of the ocean (deeper than 100 m or so) where light does not penetrate.
Neustonic
Pertaining to the thin surface layer of an aquatic environment where organisms may float or swim.
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