Nematocyst discharge is triggered by an immediate approach or a foreign stimulus. When the cell is discharged, a brand new nematocyst is created as the system in each cell can only be activated once.
Nematocyst discharge is triggered by an immediate approach or a foreign stimulus. When the cell is discharged, a brand new nematocyst is created as the system in each cell can only be activated once.
Tentacles touch a source of food.
See the related link on what causes brown discharge after period.
Its Blood.
prey capture
nematocyst
Trick
If you mean Nematocyst, a structure such as jellyfish
venom
By corallite and nematocyst .
nematocyst
their tentacles