Although her fate isn't shown onscreen, it's strongly implied that a barracuda ate Nemo's mother, along with the majority of her eggs, leaving Nemo the only child left.
Like real clownfish, Nemo and his father live within the protective stinging tentacles of a sea anemone. The natural layer of mucus produced by their bodies protects them from the anemone's sting!
What is the street address of the place Nemo is taken?
The address is 42 Wallaby Way in Sydney, Australia, the address of dentist, P. Sherman's office. Notice the interesting resemblance between "P. Sherman" and "fisherman"!
What weakness does Nemo's father overcome, in the end?
Marlin is overprotective of Nemo, and understandably so, after losing Coral and the rest of their eggs, but overcomes this by the end of the film, allowing Nemo to bloom.