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garik1379 [7]
3 years ago
6

How do similarities in the bones of humans, dolphins, horses, and birds provide evidence for evolution?

Biology
2 answers:
Dafna11 [192]3 years ago
4 0
The similarities between bones of humans and other animals shows that every living creature on earth has a common ancestor, even if that common ancestor is as simple as a sing-celled organism.
alukav5142 [94]3 years ago
4 0

Answer:

The similarities in the bones of the human beings, dolphins, horses shows that they share a more recent common ancestors.

The bones of the human beings, dolphins, horses shows common ancestry and the basic structure of the bones is same. They are considered as homologous structures.

The bones of the human beings appear similar to the bones of other animals. This shows that during the coarse of evolution, organism have evolved.

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The CFTR gene in the mouse and CFTR gene in the human beings encode proteins that perform similar function,this is so because if the results are same then it means that both mouse and human beings are encoding the protein that have similar function.

Option A is incorrect  because both humans and mouse are eukaryotes so they have introns and because of that even if the gene sequences are different they can still encode protein.

Option B is incorrect because  amino acid sequences can be similar inorder to have the similar function. If glutamic acid is replaced by aspartic acid, it won't have different function the function will remain same. So, identical amino acid sequences are not required. They can be similar too.

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