Answer:
Radiometric dating often called radioactive dating is a technique used to date materials such as rocks or carbon, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.
Explanation:
Answer: A
Explanation: Because Taq polymerase came from a thermophilic bacterium known as Thermus aquaticus found in Yellowstone National park, during PCR they should be kept at a specific temperature of 72C for maximum DNA strand replication and range of 75C-80C for optimum DNA strand replication. DONT TRUST ME im not sure
Descriptive data = valid data
Answer:
A. Earth's tilt on its axis
Explanation:
Because of the earth's tilt, during part of the year the NE US is angled towards the sun, but the other part of the year it is angled away from the sun. This is what gives us our seasons.
