Duc Carbon, nitrogen, and phosphorus are examples of
nutrients
that organisms need to stay alive. Nitrogen can be the
Choose.
in an ecosystem when its available forms are in short supply
Choose...
biogeochemical cycle
unnecessary element
nutrient reservoir
limiting nutrient
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thinking it would be physical characteristics

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

friedrich meischer discovered it in white blood cell

answer; civil inattention;