Yes because they contain cellulose (aka dietary fibre) this makes it hard for the intestines to break mushrooms down. So cook the mushrooms well, even chop them up small and chew them well. This will help the intestines to break them down and digest them better.
no
Yes, they do.
Yes, they do.
no, because a mushroom is saprophytic for its nutrion
no it cant digest its own food
Decomposition
Mushrooms do not produce their own food, they live off the decay of other organisms.
no
no
yes
Yes.
yes
yes