Most rats generally eat about 30 grams a day in food, but this can vary depending on a rats age, size, weight, if it's breeding or not & what season it is.
nothing
Yes. But too much of that type of food will make them overweight.
Usually, no. But in extreme situations when the rat doesn't have anything to eat and it's on the point of starvation then it might eat another rat.
Rats can eat metals so I am shore they can eat wood
Rats make a convenient pet because they are relatively small, they can eat almost anything, and they are not difficult to care for. It's much easier to have a pet rat than a pet rattlesnake, for example.
about $40
You can get a pet rat from most pet stores.
I don't have a pet rat!
I have a pet domestic rat, and i have yet to find anything he WON'T eat. So, in answer to your question their diet is EVERYTHING
The usual rule is that rats can eat pretty much anything humans eat. But avoid carbonated drinks as they cannot burp; these kinds of things could kill your pet rat.
In some cases, yes. For example your cat may eat your pet rat or bird.
Rats will eat just about anything, they are omnivores so they love to eat. feeding them wet bread nuts and a variety of seeds will be healthy for their diet. for fluids they should have water in a tiny dish.