Helicobacter pylori causes

A. duodenal ulcers.
B. gastritis.
C. stomach ulcers.
D. increased risk for stomach cancer.
E. All of the choices are correct.


Answer: E

Biology & Microbiology

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When an electron moves from the outer shell of one element to the outer shell of another element, a(n) ________ bond has been created

Fill in the blank(s) with correct word

Biology & Microbiology

DNA synthesis:a

is unidirectional. b. is facilitated by a phosphodiester linkage. c. occurs only once during each cell generation. d. has few mechanisms for fixing errors. e. is proofread by DNA ligase.

Biology & Microbiology

Identify and briefly describe the two phyla of seedless vascular plants. Include one or two representatives of each

phylum. What will be an ideal response?

Biology & Microbiology

You are asked to help solve a murder, and a note from the murderer taunting the police says that the crime was committed using a lipid. What molecule could you exclude from your search?

What will be an ideal response?

Biology & Microbiology