''Fine and fine, to answer both your questions. Today's lesson is Muggle Biology. Muggles, both in their schools and in their jobs, explore biology from a different angle that Wizards. They do research about the human organism and how it functions, about different organs and systems... about everything regarding the human life. Wizards do not have such developed methods. Everything wizards know about humans they owe to Muggles, which is a reason more why we have to respect them. They are the ones that managed to explain why we can walk, talk, eat, breathe, think and so on. That is the main branch of Muggle Biology.
But, since I will keep this short because of the quantity of people present... there is another branch that interests me more, right now. Muggle Zoology. Since I am truly mad at your idiotic colleagues who have not bothered to show up... I will give you a homework assignment. Differences between Zoology and our Care of Magical Creatures. The deadline is 1 DECEMBER. I hope you have a pleasant time researching. Class dismissed.'', he said.
(Next class during the weekend... the last class of the semester)