A cell is in ISOTONIC SOLUTION when solute concentrations inside and outside the cell are equal.
<span>When cells are in isotonic solution, movement of water out of the cell is exactly balanced by movement of water into the cell</span>.
Other movement of water in the cells are hypotonic solution and hypertonic solution. Hypotonic solution is where concentration of dissolved solutes are less outside the cell than inside it. Hypertonic solution is where concentrations of dissolved solutes are greater outside the cell than inside it.
<span>The distinguishing key between Mineralization is key role for microbes
and the key C, N and P cycling is for decomposition. The transfer of dissolved
and particulate material from the atmosphere to terrestrial or aquatic
ecosystems via aerosols -occur when aerosols reach the surface by gravity or
precipitation.</span>
The spread of a pathogen from person to person depends on the measurement of the contact, the point of contact and longevity of contact with a diseased person.