A chemical that affects neuronal function but is not stored in presynaptic vesicles is _____
A) acetylcholine
B) epinephrine
C) nitric oxide
D) gamma-aminobutyric acid (GABA)
C
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Discuss how the initiation of DNA synthesis occurs in bacteria using the terms origin of replication, replication fork, and theta structures
What will be an ideal response?
Are they the products of meiosis or fertilization?
What will be an ideal response?
Which hormone is essential to our ability to maintain our fluid levels?
A) cortisol B) aldosterone C) thyroxine D) insulin
Which of the following characteristics is (are) possessed in common by true mosses, ferns, and spike mosses, and therefore becomes useless at helping to determine to which of these groups "flower of stone" belongs?
1. a sporophyte generation that is dominant 2. true leaves and roots 3. flagellated sperm 4. strobili 5. alternation of generations A) 5 only B) 1 and 5 C) 2 and 3 D) 3 and 5