OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It shows that they have a common ancestor because of their similarities.
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I’m not sure.
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Animals change over time.
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None of the above
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Detailed explanation-1: -Embryos of different species have differences and similarities in structures up to a certain period during gestation. Human, pig, reptile, and bird embryos have similar embryonic development but as they grow, they transform into their respective species. This demonstrates common ancestry.
Detailed explanation-2: -Similarities in structure among distantly related species are analogous if they evolved independently in similar environments. They provide good evidence for natural selection. Examples of evidence from embryology which supports common ancestry include the tail and gill slits present in all early vertebrate embryos.
Detailed explanation-3: -Embryology can indicate evolutionary relationships between groups of organisms only because embryos have undergone less change than adults. Thus, biologists can see those structures that are similar between species at early stages of development.