Which statement is one component of the cell theory?
all living and nonliving things consist of one or more cells.
cells and living organisms are spontaneously created.
cells are the most complex unit of structure and function in living things.
a cell is the basic unit of structure and function of all organisms.

A cell is the basic unit of structure and function of all organisms.

A cell is the basic unit of structure and function of all organisms.

Explanation:

Matthias Schleiden and  Theodor Schwann were proposed the cell theory. The cell theory states the followings principles:

All living things are composed of one or more cells. The cell is the basic unit of structure and function of life. Later Rudolf Virchow added to the cell theory that ‘all new cells arise from existing cells’.

The above-mentioned principles still stand till date.

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.