EARTH SCIENCE
FOSSILS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The change over time in populations of related organisms.
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Occurs when the last individuals species dies.
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Is made up of all the fossils ever discovered on Earth.
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Remains or evidence of a once living organism.
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Detailed explanation-1: -The totality of fossils, both discovered and undiscovered, and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record.
Detailed explanation-2: -The Fossil Record 1. Fossils are the preserved remains or evidence of once-living organisms. 2. All the fossils ever discovered on Earth make up the fossil record.
Detailed explanation-3: -Fossils are typically made from sedimentary rock rather than igneous or metamorphic rock. Metamorphic rock and igneous rock are found beneath Earth’s surface. Since organisms die on Earth’s surface, they are more likely to be covered by sediment, therefore creating a fossil out of sedimentary rock.
Detailed explanation-4: -A fossil record is a group of fossils which has been analyzed and arranged chronologically and in taxonomic order. Fossils are created when organisms die, are incased in dirt and rock, and are slowly replaced by minerals over time. What is left is a mineral impression of an animal which once existed.