GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Current fossil records reflect only species that exist today.
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Radioactive dating of rocks provides evidence of extinct species.
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Some fossil records reflect organisms that no longer exist today.
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Scientists have uncovered ancient writings that describe organisms no longer living.
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Detailed explanation-1: -Radioactive dating of rocks provides evidence of extinct species.
Detailed explanation-2: -Fossils document the existence of now-extinct species, showing that different organisms have lived on Earth during different periods of the planet’s history. They can also help scientists reconstruct the evolutionary histories of present-day species.
Detailed explanation-3: -Fossil evidence supports evolution. The geographic information about many fossils provides evidence that two species with a common ancestor can develop differently in different locations. An is an early form of an organism from which later forms descend.
Detailed explanation-4: -Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos.
Detailed explanation-5: -Fossils. Fossils provide solid evidence that organisms from the past are not the same as those found today, and fossils show a progression of evolution. Scientists determine the age of fossils and categorize them from all over the world to determine when the organisms lived relative to each other.