Question

which best describes the cell theory?
scientists know all there is to know about cells, so the cell theory will not change.
as technological advancements are made, the cell theory may change.
a theory, once formulated, cannot be changed.
the development of a synthetic cell has caused the cell theory to change.

Explanation:

• Option 1: Science is iterative, and new discoveries about cells can occur, so the claim that all is known about cells is false.
• Option 2: Scientific theories, including the cell theory, are subject to revision as new technologies (like better microscopes) allow more cell - related discoveries, so this is correct.
• Option 3: Theories are based on evidence and can be modified when new evidence is found, so stating a theory cannot be changed is wrong.
• Option 4: The development of synthetic cells has not caused the cell theory to change; the cell theory's core tenets (cells as basic units of life, etc.) remain, and synthetic cells still align with its principles.

Answer:

B. As technological advancements are made, the cell theory may change.