In the 1600s, an amateur Dutch scientist observed through a microscope
simple cells called protists. His observations led to the development of
the Cell Theory, the idea that all living things are made of cells. What
does this incident illustrate about the scientific process?
(A)
An understanding of complex ideas can take several hundred years.
(B) Tools such as microscopes are required to make scientific
breakthroughs.
Human understanding of science is often linked to engineering
advances.
D Most discoveries do not come from trained scientists but from
curious people.