Which is an example of positive feedback-

Which system(s) cause(s) the pupils to constrict (get smaller)?

Responsible for head and eye movement in response to visual stimuli

All cranial nerves are a mix of sensory and motor roots.

This is a contralateral, polysynaptic reflex important in maintaining balance.

The area of the skin that provides sensory input to the CNS by one pair of spinal nerves is a(n)

When moving from the base to the apex of the basilar membrane, how does its physical properties change? 

The Gonadotropin called   _______ stimulates the production of gametes (sperm or egg). 

Using the figure below, showing the pathway of sound, describe the key events which occur in the outer, middle, and inner. To receive full credit, the key events labeled 1-5 need to be discussed.  Hint: labeled position 4 and 5 are the two different pathways sound waves can take when traveling through the inner ear (helicotrema path and basilar membrane path)

Vision is maintained because the outer segment of photoreceptors is renewed every 24 hours.