Biology II Practice Test
1. Lacrimal secretion is spread across the eye by the ___________________________________. 2. The white, outer layer of the eye is the ______________________________. 3. Chemicals (food) must be dissolved in saliva and touch the ____________________for taste to occur. 4. ______________________________________secrete a salty solution that forms tears. 5. The nerve endings which register light are located in the _________________________________. 6. ___________________pick up color, while __________________pick up black and white. 7. ___________________results when something prevents sound vibrations from getting to the inner ear. 8. ___________________________secrete a mucus that captures and dissolves airborne odor molecules. 9. We can distinguish about _____________________________________different smells. 10. The olfactory bulb and olfactory hairs are connected by ______________________________________. 11. The posterior chamber of the eye is filled with a clear, gelatinous substance known as _______________. 12. The ____________________________________________focuses light onto the retina. 13. Sound travels through the ext. auditory canal and directly strikes the ___________________________. 14. The ossicles (ear bones) are located in the _____________________________________. 15. The external ear, made of cartilage, is also known as the _________________________________. 16. The clear outside layer in front of the eye is the __________________________________. 17. All _____________________________have single-lens eyes. 18. The _____________________________can only detect intensity and direction of light. 19. Loud noises can cause ______________________________________. 20. Otosclerosis affects the _________________________________. 21. The compound eye of insects is made of light-detecting units called __________________________. 22. The external auditory canal is about ______________long by _______________in diameter. 23. Earwax is produced by the _____________________________glands. 24. The pharyngotympanic (auditory) tube connects the nasopharynx to the _______________________. 25. There are _________________semicircular canals.
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