<h3><u>Answer;</u></h3>
Vestigial Structure
<h3><u>Explanation;</u></h3>
- <em><u>Vestigial Structure are structures that have no apparent function and appear to be residual parts from a past ancestor.</u></em>
- Vestigial structures are normally homologous to structures that are functioning normally in other species and therefore may be considered evidence for evolution.
- Other examples of vestigial structures include; the human appendix, the pelvic bone of a snake, and the wings of flightless birds.
Syphilis is transmitted through sexual actions through small cuts, for malaria, it would have to be through mixing of blood from a contaminated source to a uncontaminated source.
Answer:They can tell by what type of fossils there are
Explanation:Identification of the minerals in a rock is the first thing you do. You can do it in some highly granular rocks with nothing more than a magnifying hand lens. This is called hand specimen examination. This a qualitative analysis.