Pacific
protect
Aquatic
Your 'muscles' make your body move.
fevered
If you mean a storage chest, then trunk is a 5-letter word for it. If you mean the upper part of the body, then torso is a 5-letter word for it.
abdomen
Anphibian
The word Mollusk is a 7 letter word.
icicles
I'd say 'urethra', even though the positions of the letters don't match with the ones you gave, but it's 7 letters and it is a tube which connects the urinary bladder to the outside of the body, so I'm 99% sure of it that this is the word you are searching.
The 7 letter word is "Capsule"
A 7-letter word for "far" is "distant."