NGSS.MS-LS4-1

Studies dinosaurs and fossils

• seismologist
• biologist
• physicist
• paleontologist

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Remains of ancient organisms are called

• Extinctions
• Fossils
• Mutations
• Variations

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This is an example of a 

• Trace fossil
• cast fossil
• fossil mold
• carbon film

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The parts of an ecosystem that are currently living or that have once lived.

• Biotic Factor
• Abiotic Factor
• Species
• Biome

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Why did scientists lead by Shubin decide to search in the Canadian Arctic for transition fossils? Select all that apply.

• Age of the rocks

• Kind of the rock there

• Other parts of the world had been explored already

• The climate/weather was the best there

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Fossils such as __________ provide evidence of past life and environmental conditions

• rocks and sand

• footprints and shells

• rare minerals

• . hieroglyphics

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Footprints, nests, and eggs are all examples of what kind of fossils?

• Mold fossil

• Cast fossil

• Trace fossil

• True Form fossil

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450 million year old rocks contain fossils of jawless fish. 400 million year old rocks contain fossils of jawless fish AND fish with jaws. What does this evidence suggest?

• fish with jaws appeared earlier in the fossil record

• fish with jaws and jawless fish appeared at the same time in the fossil record

• jawless fish appeared first in the fossil record

• fish with jaws no longer exist

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A Mass Extinction wipe out one-fourth to one-half of all life on Earth in a short period of time.

• True

• False

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The ground sloth and saber tooth cat are extinct because

• humans killed them

• they didn't like to reproduce

• their environment changed

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