Cells are composed of water, inorganic ions, and carbon-containing (organic) molecules. Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass. Consequently, the interactions between water and the other constituents of cells are of central importance in biological chemistry.
Water is a polar molecule because its opposite ends have opposite electric charges.
A spherically shaped bacteria are known as cocci..
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B migration, that is the answer
The answer is A because they are parts of algae
