The amino acid that operates at most inhibitory synapses in the brain is _____
A) acetylcholine
B) epinephrine
C) endorphin
D) nitric oxide
E) gamma-aminobutyric acid (GABA)
Answer: E
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Of all organisms, prokaryotes are
a. the smallest. b. the most abundant. c. the most metabolically diverse. d. the most widespread. e. all of these.
How many liters of water does an average human need to replace each day by consuming food or drink?
A) 1 B) 2 C) 3 D) 4
The average birth weight for human babies is about 3 kg. Which of the following terms best describes this?
A) artificial selection B) directional selection C) stabilizing selection D) disruptive selection E) sexual selection
N-linked oligosaccharides are added in the
a. cis Golgi and modified in the medial Golgi. b. ER and modified in the Golgi. c. medial Golgi and modified in the trans Golgi. d. cis Golgi and modified in the trans Golgi.