Answer:
You can add <em><u>"Cuz' I'm what I'm"</u></em> in the end.
Overall, the poem is good as it is.
Infectious words comes from the word "infect" means something that is capable of being transmitted so we call it infection, which means it is spreadable like a disease. So, the answer could be:
1) His disease was very infectious.
Fast growing Salmon to me would be a freak of nature. Most likley some idiot put some steriods in the ocean, but also must mean something is happening with where they live and they are trying to adapt to what has happened.
Because *They* are deadly,
comma after jellyfish
hurt, or even die.
Good Luck!