Scientists use evidence from their findings to support theories of life on earth. Which of these findings could not be used to provide supporting evidence that life on earth has changed over time? Choose the correct answer.

a) increasing complexity of fossils in younger rock layers

b) increasing diversity of fossils in rock layers following an extinction

c) transitional fossils

d) rock layers with no fossils

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? view available hint(s)taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? the enzyme will not work on human dna.nothing should be altered.the ph should be decreased.the temperature should be raised.

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america