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:

1) vestigial structures, and example of morphological homology

2) vestigial structures, and example of convergent evolution

3) analogous structures, an example of convergent evolution

4) vestigial structures, and example of embryological homology

Explain why.

Explanation / Answer

Answer -1. vestigial structures, and example of morphological homology

The organs or structures that have lost their functions in the organism but function in some other organisms are called vestigial structures. They have the same structure but different function comes under homologus in structure (morphology)

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