BIO CASE-4

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Southwest Texas Junior College *

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1309

Subject

Geology

Date

Oct 30, 2023

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docx

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1

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Along the banks of a river, some sedimentary rock strata have been revealed by erosion. By radiometric dating, the layer above these strata is determined to be approximately 290 million years old, and the layer beneath is dated to approximately 354 million years ago. A paleontologist starts to uncover fossils in the sedimentary rock strata. The fossils are clearly land-dwelling vertebrates. Are the fossils more likely to be reptiles or amphibians? Explain your answer. Based on the fact that the fossils are being uncovered in sedimentary rock strata and identified as land-dwelling vertebrates, as well as considering the adaptations of reptiles and amphibians to terrestrial environments, it is more likely that the fossils being uncovered are reptiles rather than amphibians. However, further analysis and study of the fossils, including their characteristics and the specific geological context in which they are found, would be necessary for a definitive identification.
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