Humans possess muscles attached to their skull which serve no function (although

Question

Humans possess muscles attached to their skull which serve no function (although some humans can use them to wiggle their ears). These muscles are similar to those found in animals such as horses and dogs who are able to move their ears for a specific function. Such structures in humans are evidence of a common ancestor with other mammals and are called:

Please explain why.

a) vestigial structures, and example of morphological homology

b) vestigial structures, and example of convergent evolution

c) analogous structures, an example of convergent evolution

d) vestigial structures, and example of embryological homology

Explanation / Answer

a) vestigial structures, and example of morphological homology
This is because the structure is not in use anymore, and also because it is a similar structure only in the basis of morphology.

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