In general, mollusks have 3 body regions: a head, a visceral mass, and a foot.. The head contains the sense organs and brain, while the visceral mass contains the internal organs. The foot is the muscular lower part of the body which is in contact with the substrate.
BCAA's are branched chain amino acids (leucine, isoleucine and valine). They are 3 of the eight essential amino acids that are the building blocks for protein. look up what creatine is and you will know the difference.......... 07-09-2011, 05:58 PM #14.
Theyâre both very similar in that they both involve the study of calculus, both require a great deal of hard work, and both have a âBâ in their title. The real difference is that AB typically covers the content covered in a first semester college course while BC covers the first two semesters of a college course.