Tetrodotoxin (ttx) is a neurotoxin that blocks voltage-gated na + channels. what will happen in an organism that ingests ttx? all of the above in sufficient quantities, it will be fatal in the organism. action potentials will be impaired. neurotransmitter release will be impaired.

This question is unfortunately incomplete. A neurotoxin that blocks voltage-gated na + channels will have all of the effects listed: there will be impairment of action potentials and neurotransmitter release, and in sufficient quantities, the toxin will prove fatal to the organism.