How many different amino acids are found in humans?
a. 4
b. 8
c. 12
d. 16
e. 20
ANSWER: e
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All of the following are true about botulinum toxin/Botox except
A) The toxin is one of the most potent toxins known. B) Botox is a SNARE protein. C) It can be used therapeutically to stop muscle spasms. D) It has been used to remove wrinkles caused by muscle contractions. E) It has potential use as a migraine headache treatment.
What is the name of the process by which carbon sediments on the ocean floor are moved beneath one tectonic plate, and may eventually be released by volcanic activity?
a. sublimation b. infusion c. subduction d. lithification
In mitosis, if a parent cell has 16 chromosomes,
each daughter cell will have how many chromosomes? a. 64 b. 32 c. 16 d. 8 e. 4
What is the digestive system microbiome?
A) all of the "good" bacteria living in a person's digestive system B) all of the "bad" bacteria living in a person's digestive system C) all of the bacteria living in a person's digestive system