Chambray, by contrast, is a fabric defined by the way it is made: a plain weave of colored warp and white filling yarns. It is usually made of cotton fibers, but it can also be made with linen or silk, and its primary use is shirting. credit: Jupiterimages /Polka Dot/Getty Images. Linen is made from flax fibers.
Best Answer: vestigial structures are considered evidence because scientists believe they are structures that were once used by a species ancestors but are not longer needed. these structures do not impair the organism in any way, so there is no need for evolution to get rid of them. for example, the human appendix is considered a vestigial structure. it is believed that in earlier humans, the appendix helped to break down foods like plants.
This evidence explicates that evolution does occur, and is able to show the natural processes by which the biodiversity of life on Earth developed. Additionally, this evidence supports the modern evolutionary synthesis âthe current scientific theory that explains how and why life changes over time.urther evidence comes from the field of biogeography because evolution with common descent provides the best and most thorough explanation for a variety of facts concerning the geographical distribution of plants and animals across the world.