Nemo, a marine fish (adapted for life in the sea salt water ) is placed inside a freshwater aquarium. The next day, the owner finds that he has perished(died) in the tank! Why?

The freshwater is hypotonic to the fish

Explanation:

A marine fish is adapted to living in water that is salty.

The fish will not survive because the freshwater would be hypotonic to the body of the fish and as such, excess water would enter its body which will lead to its death. The cells that make up the body of the fish will take-in excess water and lyse, leading to the death of the fish itself.

it's c.us forest service

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.