What can fossils tell scientists about Earth's past? How does geological time help scientists keep track of events in Earth's history?
Describe strata.
Which organisms on the geologic time scale are now extinct?
What are the two main processes scientists use to measure the age of Earth and its parts?
What is another name for radioactive dating?
How do we use relative dating to determine the age of a fossil, artifact, or rock layer?
According to the law of superposition, where would you find objects with an older relative age?
Name two index fossils. Why are these fossils important to the practice of relative aging?
How do we use radioactive dating to determine the age of a fossil, artifact, or rock layer?
If you needed to find the exact age of an object, which age analysis process would you use? Why?
How does radioactive decay help scientists determine the exact age of an object?
Carbon-14 is best used to find the age of:
Uranium-235 is best used to find the age of:
What is one limitation of radioactive dating?

Which of the following is a question of morality? a.) delierately reporting false data b.) accidentally reporting false data c.) kepping a sloppy record of experimental observation d.) condition a drug experiment which will harm a lab rats

Part e - sequence of metabolic processes each of the different cellular metabolic pathways occurs in a specific order. consider aerobic cellular metabolism from the beginning to end. what is the sequential order of the metabolic processes that starts with glucose and results in the production of carbon dioxide, water, and atp? put the following in the correct sequential order. rank from earliest to latest. to rank items as equivalent, overlap them. view available hint(s) acetyl coaglycolysiscitric acid cycle pyruvate finishstartstart background image electron transport chain background image finish background image submit cellular metabolism is often expressed as an equation. this equation puts into perspective, on a general scale, the substances needed to start cellular metabolism and the products that come out of it. the equation represents the overall product yield after every step of cellular metabolism is complete (i.e., glycolysis through the electron transport system). in this part of the tutorial you task will be to put together the equation that represents cellular metabolism. you will also learn the products that result from each metabolic pathway and the role that some these products play in the production of atp.

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.