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 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
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
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.