Yellow bone marrow contains a large percentage of ________.
elastic tissue
blood-forming cells
Sharpey's fibers
fat
fat
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Which type of lever is demonstrated by using scissors?
A) a first-class lever B) a second-class lever C) a third-class lever D) a fourth-class lever
Graft rejection may be caused by ________.
A) using a xenograft B) use of immunosuppressive drugs C) treatment with antilymphocyte serum D) total body irradiation
__________ capillaries have endothelial cells pierced by filtration pores that allow the rapid passage of small molecules.
Fill in the blank(s) with the appropriate word(s).
The peritubular capillaries
a. supply nutrients and O2 to the tubular cells. b. take up the substances that are reabsorbed by the tubules. c. supply substances that are secreted by the tubules. d. all of these answers. e. none of these answers.