As a biology teacher I can tell you that one of the biggest challenges that I face during every single semester is dealing with parents on the subject of creationism and evolution.
As a Christian it is very hard for me to deal with these parents sometimes but I think I have more understanding than other biology teachers that are atheists. science does conflict with some parts of the Bible and because of this you are facing an uphill challenge as a biology teacher in dealing with religion and life science that you love.
There a specific courses that a biology teacher can take to help in coping with this modern-day political issue and a separation between the church and state. I just hope that these differences in beliefs will never need to be dropping of biology as a legitimate subject in school. The years and years that have been spent spent by countless researchers would be lost to an ideology that is written about in old text.