Which of the following best matches the description?Organisms that live on the bottom of marine or freshwater ecosystems.
A. marsh
B. boreal forest
C. benthic
D. littoral zone
E. pelagic
F. biochemical oxygen demand
G. pioneer community
H. grassland
I. periphyton
J. desert
K. tundra
L. phytoplankton
M. savanna
N. euphotic
O. deciduous forest
Answer: C
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