Which term means "any remains, trace or imprint of animal or plant life preserved in Earth’s crust?" *
1 point
The study of fossils is called? *
1 point
______________is all the known organisms that have existed in Earth’s history that are preserved in rock? *
1 point
Which term means, "the measurement of time from the formation of Earth to the present?" *
1 point
The Geological Time Scale. Use this picture to answer the following questions.
Eras are divided into _____________. *
1 point
Periods are divided into _____________. *
1 point
During which era were the first single-celled organisms living on Earth? *
1 point
During which era were dinosaurs living on Earth? *
1 point
During which era did mammals and humans first appear on Earth? *
1 point
Review index fossils, then answer the questions below.
Which would make a good index fossil? *
1 point
How do fossils help scientists understand the past? Try to use some of the following vocabulary words in your response: fossils, eras, the fossil record, index fossil, geologic time, etc. *
Your answer
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