Which of the following is used during the fight-or-flight response?
a. sympathetic nervous system
b. parasympathetic nervous system
c. norepinephrine
d. sympathetic nervous system and norepinephrine
e. parasympathetic nervous system and norepinephrine
ANSWER: d
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A process by which the NADH and FADH pass their electrons through the inner membrane of the mitochondria, producing ATP and metabolic water
A) Cristae E) Flagella
B) Electron transport chain F) Plasma membrane
C) Microtubules G) Citric acid cycle
D) Glycolysis H) ATP
Riftia tube worms contain unusual hemoglobins that bind(s)
A) H2S and O2 in order to transport these chemicals to their bacterial symbionts. B) high concentrations of O2 produced by their photosynthetic symbionts. C) sulfate to transport this ion away from their bacterial symbionts. D) ammonia that their bacterial symbionts produce.
What would be the error rate in DNA replication if the proofreading ability of DNA polymerase were to be removed?
a. 1 error in 10 000 000 to 100 000 000 nucleotides b. 1 error in 100 000 to 1 000 000 nucleotides c. 1 error in 1000 to 10 000 nucleotides d. 1 error in 10 to 100 nucleotides
During the primary infection phase of HIV/AIDS, most people may have flu-like symptoms, causing them to contact a doctor immediately.
a. true b. false