Question

Which of these statements expresses a scientific theory?

A. All the tissues that make up animals consist of cells.
B. Cells are the basic units of life.
C. The larger of two cells probably contains a nucleus.
D. A material that consists of cells came from a living organism.
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Answer 1

B. Cells are the basic units of life.

Step-by-step explanation:

This is a scientific theory that pertains to all living matter. It is one of the basic rules that every form of biological life follows.