In the case of a bird eating a worm, the worm is the prey. The bird is a predator.
no
First there is no worm in tequila. Mezcal has the worm (in some brands). And no, there is not enough alcohol in the worm to get you drunk.
The Holocaust.
Umm why would you think eating a worm is healthy.
If you are a worm, then yes.
no, because the worm dies. it is just predator and prey
yes
no, beaks are wrong
Possibly, depending upon what the worm or larva is. It's more likely that you wouldn't get sick, but I would recommend removing the worm from the walnuts before eating any of them. Also, if you could cook the walnuts (such as roasting or heating them) before eating them, that would also make them safer.
mutualism.
It is known as 'B.E.D', or 'Binge Eating Disorder' (also called Compulsive Overeating). It is an official eating disorder listed in the DSM-IV.