The correct answer is option B, that is, all living organisms are composed of one or more cells, which came from pre-existing cells.
A scientific theory refers to a well-substantiated illustration of some characteristic of the natural world, on the basis of a number of facts, which have been repeatedly confirmed via the experiment and observation. Such fact-supported theories are not hypotheses, however, are reliable explanations of the real world.
During the late 1830s, the zoologist Schwann and the botanist Schleiden were examining tissues and postulated the unified cell theory. According to the unified cell theory, all the living things comprises of one or more cells, the cell is the fundamental unit of life, and the new cells originate from the pre-existing cells.
A balance of organic and inorganic materials
The relationship between its volume and surface area limits how large a cell can get.
<h3>What is cell range?</h3>
The range of a cell is defined as the quantity of material that can be found within a cell with respect to the surface area.
The range of a cell is limited by the volume and the surface area which means that the wider the surface area the more volume the cell can contain.
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