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Which of the following is NOT a characteristic of microbial communities in aquatic ecosystems?
EXPLANATION
Aquatic Microbial Communities & Biofilm Ecolo
- Characteristics of Aquatic Microorganisms:
- Aquatic microbial communities (bacteria, archaea, microalgae) are characterized by:
- Extraordinary phylogenetic and metabolic diversity.
- Vast numerical abundance (typically $10^5 - 10^7\text{ cells/mL}$ in surface seawater and up to $10^9 - 10^{10}\text{ cells/g}$ in sediment).
- Central driving roles in biogeochemical nutrient cycling ($ ext{C, N, P, S}$).
- Therefore, "Low abundance" is NOT a characteristic of aquatic microbial communities.
- Correct Option: Option 2 (Low abundance).
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