Which of these microorganisms is MOST likely to be found in the human gut?

A) Helicobacter pylori
B) Streptococcus sobrinus
C) Streptococcus mutans
D) Roseobacter denitrificans


Answer: A

Biology & Microbiology

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Genetic divergences may ultimately lead to

a. new variations. b. new species. c. new gene frequencies. d. new competition. e. new alleles

Biology & Microbiology

Which of the following is generally more complex than the others?

A. Archaea B. Bacteria C. Prokarya D. Eukarya E. microorganisms

Biology & Microbiology

Migration reduces genetic differences between populations due to gene ____ between the two

Fill in the blank with the appropriate word.

Biology & Microbiology

Which of the following neurotransmitters prepares the body to respond to stress or excitement?

a. acetylcholine b. dopamine c. epinephrine d. serotonin e. endorphins

Biology & Microbiology