pH is a logarithmic measure of the hydrogen ion concentration of an aqueous solution: pH = -log[H+] where log is the base 10 logarithm and [H+] is the hydrogen ion concentration in moles per liter. pH describes how acidic or basic an aqueous solution is, where a pH below 7 is acidic and a pH greater than 7 is basic. pH of 7 is considered neutral (e.g., pure water). Typically, values of pH range from 0 to 14, although very strong acids may have a negative pH, while very strong bases may have a pH exceeding 14. The term pH was first described by Danish biochemist SÃ¸ren Peter Lauritz SÃ¸rensen in 1909. pH is an abbreviation for power of hydrogen where p is short for the German word for power, potenz and H is the element symbol for hydrogen. Why pH Measurements Are Important
The 3 types of symbiotic relationships are mutualism, commensalism, and parasitism. What makes these three relationships similar is that they involve the close and often long- â¦ term interaction between different biological species.
Symbiotic Relationships in the Rainforest. The examples of symbiotic relationships in the rainforest biome provided in this article will help you understand the concept of symbiosis in the ecosystem. Advertisement. Tropical rainforests are home to 40% of the plant and animal species inhabiting the Earth.he examples of symbiotic relationships in the rainforest biome provided in this article will help you understand the concept of symbiosis in the ecosystem.