Report Abuse. 1  Hitch Installation Cost. 2  Trailer Hitch Installation Cost. 3  This Site Might Help You.  I paid $400 to have a removable hitch installed on my 1983 Mercedes 300SD, but I feel I was really ripped 1  off. if it's a custom modification, like the one I'm doing for a friend, could be approaching $1000.
Cavity Structural Effect. The Cavity Structural Effect (CSE) was discovered in spring 1983 by chance by Viktor S. Grebennikov (1927-2001), entomologist and painter, when he moved his hand over multi cavernous bee nests and felt warmth emanating from them.
A homologous structures are structures that share an evolutionary  ancestry. An example of homologous structures would be the bones in  the arms of a human, the wings of a b â¦ at, and the legs of a dog.tructures that are embryologically similar, but have different functions, are called homologous structures. Though these animals look different, a comparison of homologous structures indicates that they are quite similar. This suggests that these animals evolved from a common ancestor.   by: Lameace[=.