Type the number

Exercise and reference answers

Questions

1. Answer

   5

   Question

   Major senses most people list

2. Answer

   3

   Question

   Kinds of cone photopigment in the eye

3. Answer

   3

   Question

   Small bones spanning the middle ear

4. Answer

   20

   Question

   Lowest frequency in hertz the cochlea encodes

5. Answer

   1

   Question

   Photons needed to fire one rod cell

6. Answer

   0

   Question

   Photoreceptors found at the optic disc

Instructions

Type the number only.

Explanation