Question

question 187
the word part oto - means:
eardrum
ear and hearing
in head
nerve

question 188
the outer hard layer of the eye (white of eye) is the:
pupil
choroid
iris
sclera

question 189
the word part pharyngo - means:
nose
chest
throat
mouth

Explanation:

• For Question 187: The prefix "Oto -" is a common medical prefix related to the ear and hearing. For example, "otology" is the study of the ear.
• For Question 188: The sclera is the tough, white outer layer of the eye. The pupil is the opening in the center of the iris (the colored part), and the choroid is a layer between the sclera and the retina.
• For Question 189: The prefix "Pharyngo -" refers to the throat. For instance, "pharyngitis" is inflammation of the throat.

Answer:

Question 187: ear and hearing
Question 188: sclera
Question 189: Throat