One MAIN idea of the article is that biological
evolution is a fact
Which key detail from the section "What Is A
Theory?" supports this MAIN idea?
When most people use the word "theory."
what they mean is guesswork
d each
Scientific theories are backed up with
mathematical formulas.
in
The evidence comes from many different
fields of science.
In the same way, our understanding of the
process of evolution has changed over time.