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Supply the missing reagent(s) in the synthesis below.
Oxygen
A chemical element with symbol O and atomic number 8, essential for most life forms on Earth as part of the process of respiration.
Ecological Niche
Of a species, unique set of requirements and roles in an ecosystem.
Unique Requirements
Specific needs that are particular to an individual organism, system, or process, distinguishing them from others.
Ecosystem
A biological community of interacting organisms and their physical environment, considered as a system of energy flow and nutrient cycling.
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