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5. Action potentials normally travel along an axon in either direction depending on the needs of the animal. )
       True 
       False 

 

Question 6.6. The thalamus relays information to the body.)
       True 
       False 

 

Question 7.7. The resting membrane allows much more potassium than sodium to diffuse across so that the concentration of potassium inside of the cell is greater than outside of the cell. 
       True 
       False 

 

Question 8.8. A sponge is a bilateral animal and so has a central nervous system. 
       True 
       False 

 

Question 9.9. Scientists have determined that exposure to aluminum causes alzheimer's disease. The treatment for alzheimer's is to avoid aluminum which is found in cook,ware, canteens and some deodorants. 
       True 
       False 

 

 
10. Areas of the brain in the cerebrum play major roles in memory, learning speech and emotions.
       True 
       False 

 

Question 11.11. A synapse is a site of communication between two different cells. 
       True 
       False 

 

Question 12.12. The neurons in your body can only receive information from one other neuron cell at a time. 
       True 
       False 

 

Question 13.13. Once the threshold potential is reached an action potential is inevitable. 
       True 
       False 

 

Question 14.14. Nicotine binds and activates acetycholine receptors, caffeine counters inhibitory signals and amphetamines and cocaine increase the release and availability of norepinephrine.
       True 
       False 

 

Question 15.15. Neurotransmitter molecules bind to receptors in the receiving cell's plasma membrane.
       True 
       False 

 

Question 16.16. When you do not have 20/20 vision and wear contact lenses or eye glasses, they work to improve your sight because they bend the light rays to correct your vision.
       True 
       False 
17. If an animal is diurnal (active during the day) it probably has more cones in its eyes to distinguish more colors because its prey may have evolved to be camouflaged in the daylight. 
       True 
       False 

 

Question 18.18. The auditory nerve in your ear functions in a similar way to the optic nerve in your eye. 
       True 
       False 

 

Question 19.19. Compound eyes are accurate motion and color detectors and have multiple light foucsing lenses. 
       True 
       False 

 

Question 20.20. My aunt lived to be 106 years old. Once she was about 95 she started to complain the the food in the "home" just did not have much taste or flavor. There is a physical reason for this to occur in the elderly population. 
       True 
       False 

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