Some good websites that will help you
http://faculty.tnstate.edu/tcorse/h1220revised/formation_of_world_systems.htm
http://www.academia.edu/9958314/What_Caused_the_Decline_of_the_Mughal_Empire_During_the_Reign_of_Aur...
if you need facts or whatever message me :>
Answer:
an introduction is the context of the preamble
Well they would obvi need oxygen and special houses
The matrix in connective tissue is a makeup of cells, ground substance and many fibers. Usually, the tissue would contain mostly water, but it could change depending on certain things. These are what makes up the extracellular matrix. However, the matrix in connective tissue is actually most known as having soft and specialized tissue.
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