They don't really.
Their best defence mechanisms are: (1) staying in large groups and (2) swimmimg away fast.
how do animals protect themselves from their enemies by using there mouth parts
By throwing mud on their enemies
they raddle
????
they camouflage
By using their tencles
TANGA
Camoflauge
The makahiya protect themselves by flipping their leaves
they fly away
by pretending they are dead
By outrunnig there enimes