A tolerance curve is the range of conditions which show how
an organism can live and function. It is a graph that will show the organism’s
activity in certain environmental conditions. There are different species all
over the world and each of them has certain environmental conditions which it
can best survive and reproduce. These are the conditions which the species has
best adapted. These conditions may include physical factors in the area such as
temperature, humidity, soil chemistry, pH, salinity and oxygen levels.
