What is cell?write it's two significance in living organisms.​

Cells are the basic building blocks of all living things.

The human body is composed of trillions of cells.

They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.

Cells have many parts, each with a different function.

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c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.