Why do nerve impulses not continue forever? include discussion of the enzyme involved in preventing this from occurring in your explanation.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

hope this any more questions i am here plz mark brainliest

the tricuspid valve is present between right atrium and right ventricle