AAA is a federation of motor clubs. The cost of an AAA membership and even levels of membership vary by region. For instance, here are the yearly prices for the membership levels in AAA of Northern California, Nevada and Utah: Classic: $56, plus $34 per additional household member.
Connective tissue is made up of cells and extracellular matrix. The extracellular matrix is made up of fibres in a protein and polysaccharide matrix, secreted and organised by cells in the extracellular matrix.
Matrix fibers are proteins that provide support for the connective tissue. There are three types: Collagen fibers, made of the protein collagen, are both tough and flexible. Elastic fibers, made of the protein elastin, are strong and stretchable.