Fossil and Geologic Time quiz Reviewer

Fossils that are not the actual organism but evidence of that organism's existence.

• index fossils

• trace fossils

• altered hard parts

• original preservation

Which of the following is a condition that will preserve remains?

• amber

• frozen in permafrost

• tar

• all of these are correct

What is hardened tree sap called?

• coprolites
• index fossils
• gastroliths
• amber

Fossils that haven't changed over time, all tissues are still intact.  

• index fossils
• trace fossils 
• petrified fossils
• preserved remains

Which of the following is an example of a trace fossil?

• petrified wood
• index fossils
• gastroliths
• amber

Fossils that are modified bone, wood or shell. 

• preserved remains
• petrified fossils
• index fossils
• trace fossils

A fossil that forms when a hollowed out impression in a rock that is the same shape as a shell fills with sediment and then hardens.  

• cast
• mold
• trace fossil 
• index fossil 

Which of the following is NOT a characteristic of an index fossil?

• has a wide geographic range
• is hard to find
• is easily recognized
• existed for a short geologic time

A woolly mammoth found frozen in the permafrost of Siberia is an example of... 

• a mold
• an altered hard part
• a cast
• preserved remains

Which of the following statements about fossils is NOT true?

• They can be used to correlate rock layers. 
• They can always be found as living specimens today.
• They can be used to determine relative age. 
• They can indicate what climates were like in the past.