GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Birds evolved from reptiles
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Reptiles are not similar to birds
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Chicken pot pie
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None of the above
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Detailed explanation-1: -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-2: -Fossils, along with the comparative anatomy of present-day organisms, constitute the morphological, or anatomical, record. By comparing the anatomies of both modern and extinct species, paleontologists can infer the lineages of those species.
Detailed explanation-3: -Some fossil organisms are transitional forms between groups of organisms. Fossil organisms often share physical similarities with living organisms. All fossils contain intact DNA that can be sequenced. Fossil ages can often be determined by testing nearby rocks.
Detailed explanation-4: -Evidence for common ancestry can be found in the fossil record, from comparative anatomy and embryology, from the similarities of cellular processes and structures, and from comparisons of DNA sequences between species.