GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Most fossils are found in sedimentary rock.
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Most species of life on Earth have become extinct.
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Characteristics of simpler life forms can be found in more complex life forms.
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Only a small percentage of living things have been preserved in fossils.
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Detailed explanation-1: -Fossils. Fossils document the existence of now-extinct past species that are related to present-day species. Direct observation. We can directly observe small-scale evolution in organisms with short lifecycles (e.g., pesticide-resistant insects).
Detailed explanation-2: -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-3: -Darwin used multiple lines of evidence to support his theory of evolution by natural selection–fossil evidence, biogeographical evidence, and anatomical evidence.
Detailed explanation-4: -There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.