If myelin was lost from the neuron firing the action potential graphed, the action potential cycle would
A) go much faster than depicted in the graph.
B) go much faster than normal but not peak at 30 mV.
C) go slower than depicted in the graph.
D) go much slower than normal but peak much higher than 30 mV.
E) remain the same.
Answer: E
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How do carnivores and herbivores differ?
A. Carnivores can be opportunistic but herbivores cannot. B. Herbivores can be opportunistic but carnivores cannot. C. Carnivores and herbivores require different enzymes to digest their food. D. Carnivores must eat more frequently than herbivores. E. Herbivores remain herbivores at all stages of development, while carnivores are often herbivores in their larval stages.
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a. the ectoderm only. b. the endoderm only. c. the mesoderm only. d. the ectoderm and endoderm. e. all of the germ layers.
The beginning of anaphase is indicated by which of the following?
A) Chromatids lose their kinetochores. B) Cohesin attaches the sister chromatids to each other. C) Cohesin is cleaved enzymatically. D) Spindle microtubules begin to polymerize.