Which scientist proposed the cell theory for animals?

The term 'Cell' was coined and the structure was discovered by:

Select the statements which are related to Schwann.
$(i)$ He reported that cells have a thin outer layer which is today known as plasma membrane.
$(ii)$ Cell wall is a unique character of the plant cell.
$(iii)$ Body of plants and animals are composed of cells and products of cells.

What is the smallest structural and functional unit of a living organism?

"New cells arise from pre-existing cells" - this statement was given by .....

The physical basis of life is .......