The release of which of the following neurotransmitters is stimulated by all major addictive drugs?
a. dopamine
b. GABA
c. serotonin
d. acetylcholine
a
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The apparatus in the accompanying figure was used in the primitive Earth atmosphere simulation experiments
performed by a. Stanley Miller. b. Günter Wächtershäuser. c. Australian researchers. d. Kwang Jeon. e. Francis Crick.
North Atlantic right whales, Eubalaena glacialis, were called "right whales" because they were the best whale for early whalers to kill. They have long baleen and lots of blubber and oil
When killed, they could be towed back to land for processing because they float. They once numbered in the millions, but the entire population of the species is now less than 400. The history of the right whale is an example of A) pollution. B) overexploitation. C) habitat destruction. D) competition.
The maintenance of the HbS (sickle) allele in humans is an example of homozygote advantage
a. True b. False
A carbon atom with six protons, seven neutrons, and six electrons has a mass number of
a. 6. b. 7. c. 12. d. 13. e. 19.