What is the defining characteristic of a water cycle? A. The water passes through at least five different locations.
B. It does not include any human water usage.
C. It passes through plants, animals and the ocean.
D. It has the same starting and ending point.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

What are some characteristics of a free enterprise economy?