When a neurotransmitter released from one neuron binds to a ______ on a second neuron, that neuron depolarizes and fires.
A. G-protein coupled receptor
B. nuclear receptor
C. voltage-gated ion channel
D. enzyme-linked receptor
E. ligand-gated ion channel
E. ligand-gated ion channel
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Angiosperms
a. are the most successful of all plants. b. are the most diverse of all plants. c. are represented by a few heterotrophic plants. d. co-evolved with animal pollinators. e. are all of these.
Which of the following features are shared by all of the jawed fish?
A. ectothermic, smooth nonscaly skin and bony skeleton B. bony exoskeleton, gills and scales C. cartilaginous or bony endoskeleton, gills and scales D. endothermic, gills and scales
What is the main factor that will determine whether or not water can enter the root cells?
A. A lower osmotic pressure in the root tissues than the soil solution B. Type of plant cells that are exposed to the water C. A higher osmotic pressure in the root tissues than the soil solution D. Volume of water available
A diploid fertilized egg is called a(n) ________
Fill in the blank(s) with correct word