Kevin is constructing an explanation of the importance of freshwater ecosystems. which of these statements would be most useful to include in the explanation? a. freshwater ecosystems are distributed evenly across a continent. b. freshwater ecosystems hold less than 3 percent of earth's surface water. c. freshwater ecosystems keep fresh water in one place, and do not release it. d. freshwater ecosystems stay about the same during the year.

Option(b)

Explanation:

The reason for including the 3 percent of freshwater as most useful in the importance of freshwater ecosystems is, almost 70 percent of earth`s surface  is occupied by water. In that only 3 percent is freshwater.

Out of  overall value 2 percent of freshwater is held up in glaciers and formed as ice at both poles of North and South. The 1 percent remaining is mostly groundwater, fills the world's aquatic ecosystems like lakes and rivers, ponds, streams, springs,, and wetlands .

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.