You may have learned about the sheep clone dolly in your science class. although this experiment was greeted as a great success, there are many problems with cloning. one of the ethical issues surrounding cloning has to do with population genetics. the potential problem is that a) cloning is safer than traditional reproduction. b) cloning has become too successful in recent years. c) cloning is less safe than traditional reproduction. d) cloning could lead to a reduction of genetic variation.

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources? (site 1)

The movement of tectonic plates in two different locations is shown below: two blocks labeled location a and location b are shown. at location a the top layer of the block shows two horizontal arrows pointing towards each other. small dunes are shown in the middle between the two arrows. the block labeled b has a vertical line in the middle. on the left of the line there is an arrow pointing down. on the right of the vertical line there is an arrow pointing up which statement is most likely true? subduction may occur in both locations. earthquakes may occur in both locations. subduction may occur in location a only and a volcanic eruption may occur in location b only. an earthquake may occur in location a only and a volcanic eruption may occur in location b only.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above