Ch 17/19 - The History of Life

________ are scientists who collect and study fossils.

• Geologist
• Paleontologist
• Archaeologist 
• Seismologist

All information about past life is called the _________. 

• Fossil Record
• Fossil Index
• Fossil Story
• Fossil Point

Over ___% of all species that have lived on Earth have become extinct,

• 66
• 77
• 88
• 99

Most fossils form in ________ rock.

• Igneous
• Metamorphic
• Sedimentary
• Sandy

How many different methods of dating fossils were discussed in class?

• 1
• 2
• 3
• 4

In _____ dating, the age of a fossil is determined by comparing its placement with that of fossils in other layers of rock

• online
• relative
• radioactive
• rushed

True or False: Older rock layers can be found above the younger rock layers.

• True
• False

An __________ fossil is a species that is recognizable and that existed for a short period but had a wide geographic range. 

• easy
• amazing
• exact
• index 

True or False: Relative dating allows scientists to estimate the age of fossils. 

• True 
• False

True or False: Radioactive dating allows scientists to estimate the age of fossils. 

• True
• False