Which of the following is true of the receptor site for amino acid neurotransmitters?
A) All amino acids have a common receptor site.
B) Each amino acid has its own receptor sites.
C) There are four different types of receptor sites corresponding to the four different types of side chains on the amino acids.
D) None of the above is true.
B
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The Community Supported Agriculture movement began in Japan
Indicate whether this statement is true or false
Biodiversity hotspots are ____.
A. tropical areas where extinction is occurring B. islands where extinction is occurring C. areas that are highly endangered centers of biodiversity D. large areas with a variety of thriving species E. ecosystems that are resistant to climate change
A specific example of an urban habitat generalist would be the ________
A) American bald eagle B) Eastern hemlock tree C) dandelion D) American chestnut tree E) white-tail deer
Match the following items with the correct description
A) flows of basaltic lava fed by fissures that commonly cover extensive areas B) an isolated, steep-sided, erosional remnant consisting of lava that once occupied the vent of a volcano C) an eruption in which lava is extruded from narrow fractures in the crust D) large depression caused by collapse of the summit area of a volcano E) vast accumulation of basaltic lava resulting in a broad plain 15) volcanic necks (plugs) 16) flood basalt 17) basalt plateau 18) fissure eruption 19) caldera