Which brain region is destroyed in Parkinson’s disease?

Below is the image of the dogfish shark. What is the structure indicated by the circle and what does that structure indicate?    

What is the name of this organism?    

What is the name of the specimen below?    

What structure is indicated by the circle?

Look at the image of the crayfish on the left (A). Is this a male or female?    

What term correctly describes the entire surface of this organism?    

Match the terms to the image below.     

Match the structures to the image below.     

After otoscopy is clear, and if you are given a choice to choose just one test to screen for middle ear and cochlear function in a patient, which test would you choose and why? (explain in 25-50 words). (3 pts)Describe the potential limitations/hazards of choosing just that one screening test to comprehensively evaluate middle ear and cochlear function. (explain in 25-50 words) (2pts).    (If you have attempted this question before and got full points and no corrective feedback, you can skip this question, you will get full points.)