The images below are connected by a single word:
What is the word, and what are the connections? (words + common phases/idioms)
I think the answer is
Circle of life, life jacket (potato) (via BeastlyGerbil), life guard, life cycle (TwoBitOperation), kiss of life, jaws of life, life style (also TwoBitOperation), and shelf life.
OP: You only missed
Which was a bit sneaky so well done...
This also fits [partial answer].
Here it goes
Political Hot potato
Political Mask --> The picture is JAWS Mask