Ocean trenches are deep sections of the ocean where an oceanic plate is usually sinking below a continental plate. How are they formed? They are formed in the subduction zone as the denser oceanic plate is subjected under the continental plate.
Stage 1 - <span>The ear collects compression waves.
Stage 2 - </span>The ear amplifies the compression waves.
Stage 3 - <span>The amplified waves stimulate the hair cells of the ear.
Stage 4 - </span><span>The hair cells transmit nerve impulses to the brain
Stage 5 -</span><span>The brain interprets the nerve impulses.
Hope this helps!</span>
C membrane with the help of a channel protein
Placenta
It also does not allow the maternal and fetal bloodstreams to mix
