The ciliary tracts of gills move strands of mucous with food particles attached to the mouth. From there, the food is moved by cilia to the stomach. So, if the cilia on the gills didn't work, the mollusk would not receive enough (if any) food. It would die of starvation.
The gills of bivalves that I have seen, I would describe as looking like a piece of screening covered with cilia.
it died
they will become vampires lol what do you think will happen silly nothing~!~
no, because then those gills gills would need gills and they would need gills and so on, so on. They have specialised cells instead.
then we'd all be stuck in it so we would have to develop gills like fish or something like that
Gills would be respiration
cilia are little "hair-like" structures
All fish have gills. Their gills are like lungs. And if they didn't have gills they would die.
yes
is it the security
These are tiny "fingers" which move mucous. The mucous is sticky and traps dust, pollen and other particles. Together the cilia move the mucous out of the lungs. If this didn't happen these things trapped in the mucous would cause damage to the lungs and a person would have breathing difficulties over time.
Well the human race is able to evolve very quickly, so we would all grow gills and swim exoticly