Respond in writing to the questions, then compare
and discuss your answers with someone else.
Trey listed four kinds of organisms. What were they?
What is a different scientific word that is another way of saying “separate”?
What is a different scientific word that is another way of saying “multiplying”?
What gas did Trey say that the yeast in bread dough produce?
What did Trey say the yeast cells needed in order to produce more of themselves? Under what conditions does yeast work best?