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Unit 9 Review - Fossils

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Last updated almost 2 years ago
25 questions
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In 1970, fossil remains of a Tyrannosaurus rex were found in Big Bend National Park. The Tyrannosaurus rex fossil included part of an upper jaw and some very sharp teeth. Which conclusion is best supported by the discovery of these fossils?
The Tyrannosaurus rex fossils were carried to Big Bend by a river.
The Tyrannosaurus rex became extinct because Big Bend was uninhabitable.
The Tyrannosaurus rex ate animals that were living in Big Bend.
The Tyrannosaurus rex ate plants that were native to Big Bend.
Marine geologists collect samples of fossils such as those pictured below.


Based on the information in the pictures, what conclusion can be made about marine fossils and their environments?
They were animals that lived in caves.
They were plants that lived in caves.
They were plants that lived in the sea.
They were animals that lived in the sea.
Students compare the fossils shown in Layer A with those in Layer C.


What conclusion can be made by comparing the fossils in these two layers?
Fossils in Layer A are younger than those in Layer C.
Fossils in Layers A and C are the same age.
Fossils in Layer A are older than those in Layer C.
Fossils in Layer A and C are younger than those in Layer B.
Which of the following would be the best to use when gathering information to identify fossils?
Terrarium
Microscope
Computer
Collecting net
What is a fossil?
An old animal bone.
A type of rock.
A prehistoric tool.
A preserved trace of an ancient living organism.
Which type of rock generally contains fossils?
Lava rock.
Igneous rock.
Sedimentary rock.
Metamorphic rock.
What can a fossil reveal about its environment when it was alive?
The temperature at which it died.
The colour of its skin.
The climate and ecosystem.
The present weather conditions.
What kind of organism might leave behind a trace fossil?
An organism that moved or lived in soft ground.
An organism that lived in ice.
An organism that lived in volcanoes.
An organism that could fly.
What do fossils help us understand?
Current environmental conditions
Past living organisms and their environments
Future organisms
How to make rocks
Which of these could potentially become a fossil?
An animal bone
A piece of metal
Glass from an old window
A plastic bottle
How can we determine the environment in which an organism lived by studying its fossil?
By weighing the fossil
By measuring the size of the fossil
By tasting the fossil
By examining the rock or sediment layers around the fossil
What do we call the study of fossils?
Seismology
Paleontology
Meteorology
Geography
Fossils can provide information about what the environment was like when the organism was alive.
True
False
Using models, we can predict the exact age of any fossil found.
True
False
Fossils found in different layers of soil indicate they existed in different periods of time.
True
False
Look at this fossil:


What type of organism did this fossil come from?
Fish
Trilobite
Dinosaur
Plant
This fossil shows the footprints of an animal that lived long ago. Based on the footprint pattern and size, what type of animal do you think made these prints?

Dinosaur
Mammal
Bird
Reptile
The fossil below contains the imprint of a fern leaf. What can you infer about the environment this plant lived in based on this fossil evidence?

Hot and dry
Frozen tundra
Shallow water
Shaded and damp
What are two ways that fossils can form over time.
Permineralization and compression
Freezing and dehydration
Carbonization and mold-making
Melting and vaporization
Paleontologists often use model reconstructions to understand what extinct organisms may have looked like. Look at this model of a prehistoric marine reptile. What features tell you this animal was adapted to live in the ocean?

Large body and four legs
Streamlined body and tail fin
Wings and feathers
Hard outer shell
Fossils provide evidence of organisms that lived on Earth millions of years ago.
True
False
Fossils are primarily found in sedimentary rock layers. Why is this the case?
Igneous and metamorphic rocks are too hard for fossils to form
Sedimentary rocks form from compressed layers of sediments that can trap organisms
Most fossils are found near active volcanoes
Sedimentary rocks are only found in the ocean
The fossil below shows a preserved cluster of shells. What can you infer about the ancient environment where these organisms lived?

A terrestrial forest
A marine environment
A freshwater lake
A dry desert
What are two ways scientists use fossils as evidence to learn about past environments on Earth?
Carbon dating and molecular analysis
Study of rock layers and trace fossils
DNA extraction and fossilized pollen grains
Fossil reconstruction and climate modeling
Look at this ammonite fossil cast and model. What modern-day organism is most closely related to this extinct species?



Squid or octopus, they are both cephalopods
Clam or oyster, they all have spiral shells
Sea urchin, they are spiny ocean creatures
Millipede, their bodies have similar segment patterns