Are vestigial organs homologous or analogous? explain.

Vestigial organs are a type of homologous organs.

Explanation:

Vestigial organs are rudimentary in present organisms. Vestigial organs such as wisdom teeth,nictating membrane of eyes,body hairs,which were functional organs in ancestors. Though they are present in an organism in reduced form but are functionless.

Examples of vestigial organs:

1.  Human tail or appendix,

2. Pelvic bone of a snake

3. Wings of flightless birds

4.Male breast tissues and nipples

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the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.