While on a backpacking trip in Maine, Julie and her friends obtained their drinking water from several different pristine streams, adding one or two drops of bleach to ensure its safety. Several days later Julie began experiencing abdominal distress, specifically cramping, fatty diarrhea, and flatulence. When it didn't clear up within several days, Julie visited her doctor. Which of the following would be the most likely cause of Julie's symptoms?
A) E. coli O157:H7
B) Giardia intestinalis
C) Entamoeba histolytica
D) Schistosoma mansoni
E) Toxoplasma gondii
B) Giardia intestinalis
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Answer the following statement true (T) or false (F)
The area lying between the water lines of high and low tide is referred to as the ________
Fill in the blank(s) with correct word
The pathway from ____ sex to ____ sex can be disrupted at several stages
a. chromosomal; phenotypic b. phenotypic; chromosomal c. gonadal; chromosomal d. gonadal; genotypic e. phenotypic; gonadal
A competitive inhibitor interferes with:
A. the oxidized site of the enzyme so a substrate cannot bind B. the active site of the enzyme so a substrate cannot bind C. the reduced site of the enzyme so a substrate cannot bind D. the allosteric site of the enzyme so a substrate cannot bind E. the repressor site of the enzyme so a substrate cannot bind