Which complication to phylogenetic inference is most likely to be widespread in a group of species that have undergone an evolutionary radiation?
a. high rates of similarity because of homoplasy
b. introgression of genes between species
c. great variability of the rates of molecular evolution incomplete lineage sorting
d. none of these are consistently an issue in evolutionary radiations.

C

Explanation:

Complication to Phylogenetic inference is most likely to be widespread in a group of species that have undergone an evolutionary radiation because of  Great variability of the rates of molecular evolution Incomplete lineage sorting.

Incomplete lineage sorting: It is a characteristic Phylogenetic analysis where trees produced from single gene differ from population or species level tree.

option c is correct.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.