A PALEONTOLOGIST WHO IS RESEARCHING EXTINCTIONS NOTICES THAT CERTAIN FOSSILS ARE NEVER FOUND ABOVE A LAYER OF SEDIMENT THAT CONTAINS A LAVA FLOW. SHOULD
THE PALEONTOLOGIST USE RELATIVE DATING, ABSOLUTE
DATING, OR A COMBINATION OF THE TWO TO DETERMINE WHEN
THESE ANIMALS BECAME EXTINCT? EXPLAIN YOUR ANSWER.

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.

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.