In human audition, the vibration of the ossicles is triggered by vibration of the and transmitted directly to the . a. auditory nerve; tympanic membrane b. oval window; auditory nerve c. tympanic membrane; oval window d. eardrum; oval window e. eardrum; tympanic membrane

Explanation:

1. The eardrum:  which separates the ear canal  from middle ear. The eardrum, is also known by the name, tympanic membrane.

2. Function:  eardrum  is involved in hearing.

3. Sound waves cause eardrum to vibrate.

4. In human audition, the vibration of the ossicles is caused by vibration of the eardrum and transmitted directly to the oval window.

5.  so ans is eardrum; oval window.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

carbon atoms, hydrogen, oxygen, and nitrogen.