Presentation of a foreign antigen to a cytotoxic T cell requires a ________.
A. Class-1 MHC molecule and coreceptor CD4
B. Class-2 MHC molecule and coreceptor CD8
C. Class-2 MHC molecule and coreceptor CD4
D. Class-1 MHC molecule and coreceptor CD8
Answer: D
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Sweat glands are endocrine glands.
Answer the following statement true (T) or false (F)
Natural killer cells derive from T-lymphoblasts and monocytes derive from the granulocyte line
Indicate whether this statement is true or false.
Which of the following is NOT true of the differences between plant and animal cells?
A. Plant cells are more rigid than animal cells. B. Plant cells are square or rectangular, while animal cells are more rounded. C. Plant cells have a cell wall in addition to a plasma membrane, while animal cells only have a plasma membrane. D. During telophase, the cell plate is found in plant cells, but not in animal cells. E. All of these statements are true.
The junction between an axon and the muscle fiber itself is called a ________ junction.
Fill in the blank(s) with the appropriate word(s).