Which type of cell dampens the activity of T and B cells after the infection has been checked?
A. suppressor T cell
B. memory B cell
C. natural killer cell
D. cytotoxic T cell
E. mast cell
Answer: A
Biology & Microbiology
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A classification system based on mutual similarity that involves comparing as many characteristics as possible is called a ________ system.
A. phyletic B. phenetic C. determinative systematic D. phylogenetic
Biology & Microbiology
Which is the proper order of organization?
a. Cells, organs, tissues b. Cells, tissues, organs c. Organs, tissues, organs systems d. Organs, cells, tissues e. Tissues, organs, cells.
Biology & Microbiology
The reproductive system is the only system that contributes to homeostasis
1.True 2.False
Biology & Microbiology
Enzymes called proteases in the ER lumen catalyze folding of proteins into proper conformations
__________________ Indicate whether the statement is true or false.
Biology & Microbiology