Classification of Living Things — Unit test Answers
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Consider the generalized cladogram of fish.Osteichthyes is a group of fish that have the derived characteristics of jaws and true bones. Which letter corresponds to where Osteichthyes belongs on the cladogram?
A
AB
BC
CD
D22
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Which important event in Earth’s history occurred during the Jurassic period?
A
The first birds emerged on Earth.B
Mammals were in search of food.C
Animals with shells emerged on EarthD
Treelike ferns first began to grow and populate.23
Consider the cladogram.Which is the best description of the two organisms highlighted in orange?
A
They are separated by two nodes.B
They share a recent common ancestor.C
They belong to the same species.D
They are ancestors of each other.24
Consider the cladogram.According to the cladogram, which characteristic was used to separate bony fish from amphibians?
A
jawsB
cartilageC
bony skeletonD
lungs25
What determines the length of a geologic time period?
A
fossil recordB
material densityC
meteors and rocksD
radioactive materials26
Which phrase describes faults?
A
cause gaps in the geologic recordB
cause rocks to break and moveC
are older than surrounding rocksD
are igneous rocks that form beneath Earth’s surface27
Which best explains how scientists confirmed that the moon formed around the same time as Earth?
A
Scientists determined the approximate age of fossils from the moon and Earth.B
Scientists used radioactive dating to study the age of material from the moon and Earth.C
Scientists explored the cycle of condensation and evaporation over time on the moon and Earth.D
Scientists analyzed the content of gases that were part of the atmospheres on the moon and Earth.Did you find these answers helpful?
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