How does new discoveries helped us to redefine the classification of organisms?

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New discoveries of organisms or about organisms helped us to redefine the classification of organisms.

Explanation:

Organisms are classified on the basis of similarities and differences between them. If new things are known to the scientist about a particular organisms, so it is placed according to their characteristics in the system of classification. For example, if an organism is able to move from place to place so it is placed in kingdom animalia, but afer more research we know that it also contains chlorophyll which able him to make their own food like plants so this organism is placed in kingdom protista.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;