Test 3
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| The oldest known fish fossils indicate that | ALL
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| The earliest fish were | jawless
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| "Placoderm" refers to fish which had | plated skin
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| The evolution of jaws played an important role in the evolution of fish because it allowed them to | ALL
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| Fish of the class Chondrichthyes have a ___ skeleton and are represented in the modern seas by the ___ | body, tuna
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| The deature that distinguishes the two subclasses of bony fish is | their fin structure
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| A factor that made it difficult for animals to adapt to land was | ALL
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| The crossopterygians were well adapted to move onto the land because they had | lungs and a means for locomotion (A and B)
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| Which of the following was critical for the adaption of reptiles to terrestrial ecosystems? | the amniote egg
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| Reptiles had evolved at least by the | Upper Mississippian
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| The earliest reptiles that were small, agile, and insectiverous are loosely grouped together as the | protothyrids
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| The factors that lead to the success of th ereptiles on land include all of teh following EXCEPT | herbivorous feeding
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| The sail-like fin of the pelucosaur may have served as all of the following except: | a means of locomotion
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| The oldest fossils of the first land plants have been found in rocks of this age: | Middle Orodovician
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| Plants are divided into two major groups, the: | vascular and nonvascular
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| Vascular plants have | tissue to move water and nutrients
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| Nonvascular plants differ from vascular plants in that they | do not have specialized tissue to transport water and nutrients
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| What role do roots play in the adaptation of plants to terrestrial environments | ALL - collects water, collects nutrients, provide support
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| seedless vascular plants lived in low wet habitats because | NONE
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| What was the importance of the developemtn of the seed in vascular plant evolution? | Plants could adapt to varied terrestrial habitates
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| Vascular plants have vascular tissue that helps them to live on land by | moving water and nutrients through their tissues and providing some support for their bodies
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| The Paleozoic-Mesozoic boundary is a major break in teh geologic time scale because | it is when mammals first appeared
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| For animals, the development of the amniote egg was instrumental in | providing a means to reproduce single individuals and adaptation to life on land (B and C)
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| What is the correct order for the evolution of the following groups of animals from the earliest to the latest | fish, amphibian, reptile
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| Of the following, the FIRST organism to reproduce by the amniote egg would be | reptiles
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