they benefit humans by eating chicken breats
Almost all plants benefit humans
It may be either gold, silver or copper (or bronze, a mixture of copper and zinc)
It can have sex with its self and have babies and can fertilize its own egg.
Not really. In symbiosis, each partner derives benefit from the partnership. While rats benefit from humans, humans do not benefit from rats.
humans are animals and they benefit from eating cows. humans also benefit from drinking the milk of cows.
no they are not
We do it, not on purpose, but in trying to machine objects We benefit indirectly by producing products cheeper
yes
For food
Pet therapy!
it helps
they don't