The answer to this question is the Pubis bone. The Pubis bone is a bone that is connected with the pelvic bone that is located below the urinary bladder. The pelvic bone consist of three parts such as ilium, ischium, and pubis.
Molecules of mRNA are composed of relatively short, single strands of molecules made up of adenine, cytosine, guanine and uracil bases held together by a sugar phosphate backbone.
Hope This Helps, Lexi
the answer is b, faster through steel than through air.