Answer:
Less than 7 ph value are acidic. Greater than 7 ph value are basic.
Unicellular organisms, cells perform all the basic actions and functions required for living like nutrition, respiration, reproduction etc.
In multicellular organisms, cells divide their tasks on the basis of "DIVISION OF LABOUR" to specialize in certain functions besides respiration etc. Like conduction in neurons, excitation in muscles, RBC production by bone marrow etc.
Yes, it has many natural acids. However, the biggest and most prominent acid is the organic acid, malic acid.
<span>C. older material is located below younger material
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