Hello.
3 reasons are
Lack of EnthusiasmLack of Focus
Lack of Eye Connection
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Last option: Preserve an ecosystem

• The establishment of a bird reservation is a way to preserve an ecosystem because reservation provides suitable environment to organism. A healthy ecosystem means large number of biodiversity.
I believe it is the second option
Eukaryota and most likely produces milk to feed its young
Answer:
Generally, about half of the caught carbon is released in respiration. ... When it is dark, the only flow of CO2 comes from respiration.
Explanation: