Which is not true about the extracellular matrix? A)It provides structural support for the cell B)It is very thin
C)It is thick
D)It is composed of a vast number of proteins

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere