EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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well-adapted species have many offspring.
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conditions in an organism’s environment ensures the organism’s survival.
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birds and reptiles share a number of inherited characteristics.
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tigers are so different from cheetahs.
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Detailed explanation-1: -The groups which share recent common ancestor share a number of common inherited characters. The groups which share distant common ancestor share less common characters. Thus, birds and reptiles share a number of characters as they have evolved from common descent or ancestor.
Detailed explanation-2: -The principle of common descent is the demonstration that all living things on Earth have attributes in common, suggesting we arose from a common ancestor. For example, humans and whales are very different creatures, but both have eyes, brains, hearts, and stomachs that work in almost exactly the same ways.
Detailed explanation-3: -Darwin defined evolution as “descent with modification, ” the idea that species change over time, give rise to new species, and share a common ancestor.
Detailed explanation-4: -Common descent is an effect of speciation, in which multiple species derive from a single ancestral population. The more recent the ancestral population two species have in common, the more closely are they related.
Detailed explanation-5: -More than 150 years ago, Charles Darwin proposed the theory of universal common ancestry (UCA), linking all forms of life by a shared genetic heritage from single-celled microorganisms to humans.