Select all that applyCommon ancestry can be indicated by which of the following?Multiple select question.adaptations that result from convergent evolutionhomologous structuresanalogous structuresnucleotide and amino acid sequence similarities
Question
Select all that applyCommon ancestry can be indicated by which of the following?Multiple select question.adaptations that result from convergent evolutionhomologous structuresanalogous structuresnucleotide and amino acid sequence similarities
Solution
Common ancestry can be indicated by:
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Homologous structures: These are structures in different species that have the same evolutionary origin, even though they may now serve different functions. The similarity in these structures suggests that the species have a common ancestor.
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Nucleotide and amino acid sequence similarities: Similarities in the DNA sequences (nucleotides) or protein sequences (amino acids) of different species also suggest a common ancestry. This is because such similarities are unlikely to have arisen independently by chance.
Adaptations that result from convergent evolution and analogous structures do not necessarily indicate a common ancestry. Convergent evolution refers to the process where different species independently evolve similar traits, not because they share a common ancestor, but because they have adapted to similar environments or ecological niches. Analogous structures are the result of this convergent evolution. They perform similar functions and may look similar, but they have different evolutionary origins.
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