A bee, they pollinate flowers so we have plants and air
Snakes don't help humans..but they are useful for entertainment..but are dangerous.
its not useful for the refrigerator its useful for humans only....
No. tapeworms are pest to humans.
its not useful for the refrigerator its useful for humans only....
they damage the wetlands which are useful for humans.
Matt Knight:P
nothing
it is booger pies
yes
yes for sponges
it isn't
Jewelry, microchips.