Cell mediated immunity is mostly the function of
A. cytotoxic T cells.
B. B cells.
C. helper T cells.
D. complement cells.
E. mast cells.
A. cytotoxic T cells.
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Which of the following is a component to the unified cell theory?
a. All matter is made up of cells. b. All cells are made up of matter. c. All living things are made up by one or more cells. d. All prokaryotes are made up of more than one cell.
Evolution of metamorphosis allowed insects to, most importantly, utilize ____
a. wings b. dispersion c. multiple developmental patterns d. multiple sets of resources e. multiple methods of reproduction
A paraphyletic group consists of several evolutionary lines that do not share a common ancestor
_____________________ Indicate whether the statement is true or false.
Carriers of hepatitis B virus are not common.
Answer the following statement true (T) or false (F)