Connective tissue is different from epithelial tissue in that connective tissue:
A) has a structure called basement membrane. B) has cells that are usually separated and scattered in an extracellular material. C) is not made up of cells. D) is found only in joints.
Which of the following statements best describes epithelial tissue?
A) It is found only in the skin. B) It is always at least several layers thick. C) It covers internal and external surfaces. D) It produces blood cells. E) It only covers surfaces exposed to the internal environment.