Explanation:
sorry, I may use old terms; I believe it is at the hypothalamus, for endocrine system...
The pressure from sound waves makes the eardrum vibrate.
The vibrations are transmitted further into the ear via three bones in the middle ear : the hammer (malleus), the anvil (incus) and the stirrup (stapes).
Heat must be added to make a reduction reaction.
The answer is A.) Troposphere, Stratosphere, Mesosphere, Thermosphere
Answer:chain-link fence
Explanation:a cell membrane is partial permeable which means that it lets some substances through but not other.