GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are remains of organisms that lived on Earth.
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They are documentation of evolutionary changes in every organism that has ever lived on Earth.
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They are most often found in igneous rock formations.
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None of the above
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Detailed explanation-1: -Fossils are most likely to be found in sedimentary rock.
Detailed explanation-2: -Fossils are the preserved remains of plants and animals whose bodies were buried in sediments, such as sand and mud, under ancient seas, lakes and rivers. Fossils also include any preserved trace of life that is typically more than 10 000 years old.
Detailed explanation-3: -Index fossils are fossils that are widespread but only existed for a short period of time. Index fossils help scientists to find the relative age of a rock layer and match it up with other rock layers. Living fossils are organisms that haven’t changed much in millions of years and are still alive today.
Detailed explanation-4: -Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.