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The oldest known fish fossils indicate that
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The earliest fish were
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Geol 1404 Ch 13
Test 3
| Question | Answer |
|---|---|
| The oldest known fish fossils indicate that | ALL |
| The earliest fish were | jawless |
| "Placoderm" refers to fish which had | plated skin |
| The evolution of jaws played an important role in the evolution of fish because it allowed them to | ALL |
| Fish of the class Chondrichthyes have a ___ skeleton and are represented in the modern seas by the ___ | body, tuna |
| The deature that distinguishes the two subclasses of bony fish is | their fin structure |
| A factor that made it difficult for animals to adapt to land was | ALL |
| The crossopterygians were well adapted to move onto the land because they had | lungs and a means for locomotion (A and B) |
| Which of the following was critical for the adaption of reptiles to terrestrial ecosystems? | the amniote egg |
| Reptiles had evolved at least by the | Upper Mississippian |
| The earliest reptiles that were small, agile, and insectiverous are loosely grouped together as the | protothyrids |
| The factors that lead to the success of th ereptiles on land include all of teh following EXCEPT | herbivorous feeding |
| The sail-like fin of the pelucosaur may have served as all of the following except: | a means of locomotion |
| The oldest fossils of the first land plants have been found in rocks of this age: | Middle Orodovician |
| Plants are divided into two major groups, the: | vascular and nonvascular |
| Vascular plants have | tissue to move water and nutrients |
| Nonvascular plants differ from vascular plants in that they | do not have specialized tissue to transport water and nutrients |
| What role do roots play in the adaptation of plants to terrestrial environments | ALL - collects water, collects nutrients, provide support |
| seedless vascular plants lived in low wet habitats because | NONE |
| What was the importance of the developemtn of the seed in vascular plant evolution? | Plants could adapt to varied terrestrial habitates |
| 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 |
| The Paleozoic-Mesozoic boundary is a major break in teh geologic time scale because | it is when mammals first appeared |
| 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) |
| What is the correct order for the evolution of the following groups of animals from the earliest to the latest | fish, amphibian, reptile |
| Of the following, the FIRST organism to reproduce by the amniote egg would be | reptiles |
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