Why is the position of rock layers important when fossils are used as evidence of evolution?
Answer and explanation
Correct answer: Because layers help determine the relative age of fossils
Sedimentary rock layers generally accumulate over time, so, when the layers have not been disturbed, deeper layers are usually older than layers above them. Comparing fossil positions therefore helps establish a relative sequence of organisms and changes, although it does not by itself give an exact numerical age. A is correct; B, C, and D misunderstand fossil preservation and stratigraphy.
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What is the correct answer to this question?
Because layers help determine the relative age of fossils
Why is this the correct answer?
Sedimentary rock layers generally accumulate over time, so, when the layers have not been disturbed, deeper layers are usually older than layers above them. Comparing fossil positions therefore helps establish a relative sequence of organisms and changes, although it does not by itself give an exact numerical age. A is correct; B, C, and D misunderstand fossil preservation and stratigraphy.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Evolution and speciation.
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