Injectable drugs are tested for endotoxins by
A) the Limulus amoebocyte lysate test.
B) counting the viable bacteria.
C) filtering out the cells.
D) looking for turbidity.
E) culturing bacteria.
A
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Statements about what a researcher expects to happen to one variable if another variable changes are called ____
a. predictions b. hypotheses c. experimental variables d. theories e. scientific research
Bile is made by the ________
Fill in the blank(s) with correct word
Which of the following serves as the "translator" or intermediary between an mRNA codon and an amino acid?
A. siRNA B. snRNA C. rRNA D. snRNPs E. tRNA
Biomes are broad regional areas with defined flora and fauna. Which one of the following choices correctly identifies the biomes shown plotted in the graph of precipitation versus temperature? 
A. Tropical Rain forest = 3; Desert = 4; Tundra = 1; Grassland = 2 B. Tropical Rain forest = 1; Desert = 3; Tundra = 4; Grassland = 2 C. Tropical Rain forest = 1; Desert = 2; Tundra = 3; Grassland = 4 D. Tropical Rain forest = 3; Desert = 1; Tundra = 2; Grassland = 3