Which of the following is true of class I and class II MHC molecules?
A) They both are transmembrane proteins
B) They both have peptide binding variable domains
C) both a and b
D) neither a nor b
C
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For which of the following non-metallic mineral resources dose the United States produce more than it
consumes? a. clay b. gypsum c. potash d. salt e. sulfur
Normal oil withdrawal methods can leave as much as 95% of the total oil in the ground. Indicate whether the statement is true or false
In a small pond experiencing cultural eutrophication, the growth of duckweed will
A) add nutrients to the pond and encourage the growth of phytoplankton. B) remove nutrients from the pond and encourage the growth of phytoplankton. C) add nutrients to the pond and slow the growth of phytoplankton. D) remove nutrients from the pond and slow the growth of phytoplankton.
The sequence in which minerals crystallize in a cooling igneous melt is called Bowen's Reaction Series.
Answer the following statement true (T) or false (F)