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21 Cards in this Set

  • Front
  • Back
In order for biological organisms to become fossilized, the bones and tissue of the organism must become __________
When biological tissues as bone is covered by moten rock or embedded in slit and replaced by minerals, the resulting fossil is known as a
Replacement or compression
When spiders or insects are trapped in the secretions of trees that turns to amber and fossilizes them, the resulting fossils are known as _______ fossils
A method of determining the relative age of a fossil based on how deep it is within the sedimentary rock layers of the earth's surface is known as _________.
A type of dating that determines the date of fossils by determining the ratio between parent elements and their decay products in the rock surrounding the fossil is know as ________ dating
A fossil that represents a particular time period is known as an __________ fossil
In the Rocky Mountains of Canada there is an area that iss unusually rich in fossils, Known as the ________ ____________.
Burgess Shale
Evidence suggest that the Burgess Shale was once a lime stone cliff located in the ______.
Sea or Ocean
The fossils found in the Burgess Shale were dated to be rougly ______ years old
550 Million
The burgess shale fossils are of organisms that lived in a geological period known as the __________ period.
During the Cambrian explosion, all of the current animal _______ ________ involved
Body plan
The first multicellular organisms on Earth were _________.
Ancestral flatworms were the first organisms to develop a _________ body plan
One hypothesis for the cause of the Cambrian explosion is that animals were able to evolve because a proper level of atomspheric _________ had been achieved
The huge explosion in evolution of new body plans documented in teh Burgess Shale is known as the ________ _________
Cambrian Explosion
How was the Burgess Shale formed and what does it contain?
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What are living fossils and what are two examples?
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How do the Lampsillis mussel and large mouth bass demonstrate an evolutionary arms race?
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How have bats and moths evolved due to an evolutionary arms race?
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How has an evolutionary arms race determined the abilities of the cheetah and gazelle?
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List and briefly define the 5 types of fossils
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