Your five SENSES are smell (with your nose), taste (with your
tongue), touch (with your fingers, etc.), sight (with your
eyes), and hearing (with your ears). If living organisms
couldn't smell, they probably would "RARELY" be able to find a
meal every once and a while. If they couldn't taste, they would
probably like to eat everything. If they couldn't see, they'd
probably bumps into a few things or so the first few days of
being blind. And if they couldn't hear, they would probably
"STRUGGLE" during communication with other living things.