Answer:
Recent studies have examined the possibility that variation in species richness within communities may influence productivity leading to an exploration of the relative effect of alterations in species number per se as contrasted to the addition of productive species.
Explanation:
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Answer:
Cyanobacteria are responsible for first adding oxygen to the Earth's atmosphere.
First blank is flower and second blank is seed
The answer is orange, this is because when it is cold the leaves start to die and turn orange or red
