Explain why the increase in phosphate levels caused a decrease in biodiversity

Explanation:

The phosphate levels can increase the nutrient content of the water body. This will promote the growth and abundance of the plants and algae in the water body. The growth of algae and plants in the water body will reduce the  oxygen content of the water body. This will lead to the mortality of the animals living in the lakes hence, this process will decrease the biodiversity of the water body. This phenomena is called as eutrophication.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation: