How can tonicity affect the health of a living organism? give one real world example!

Tonicity of a solution is an important concept which plays a major role in maintaining the balance in the cells. One example is the living of organisms in fresh water these fresh water organisms have certain vacuoles that help in maintaining their tonicity otherwise the organisms are going to burst and die.

Tonicity is the defined as a process that describes the maintaining the concentration gradient across the semi permeable membrane. The tonicity is described in using 3 ideal terminologies ''isotopic'', ''hypotonic'' and ''hypertonic'' solutions.

your answer is "the 1950's"