Defensins and lysosomes are both part of ________ immunity and function as ___________
A.
adaptive; physical barriers to pathogen entry
B.
adaptive; attackers of pathogenic cells
C.
innate; physical barriers to pathogen entry
D.
innate; attackers of pathogenic cells
D
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The two primary movements allowed at the knee are ---- and ---
Fill in the blank(s) with the appropriate word (s).
Sixty to 70 percent of the water is reabsorbed in the __________.
renal corpuscle proximal convoluted tubule distal convoluted tubule collecting duct
The peripheral nervous system has two subdivisions: the sympathetic and the parasympathetic nervous systems
a. True b. False Indicate whether the statement is true or false
According to the most current model of the plasma membrane,
A. the membrane is a rigid unchanging structure. B. cholesterol forms the innermost layer of the membrane. C. phospholipids and cholesterol form a single lipid bilayer. D. proteins are free to move about within a double layer of phospholipids. E. the membrane is impermeable to all other molecules.