Happy New Year!
Please start working on chapters 14-15 for early next week, bring books Thursday.
We'll be doing all the chapters so if you want to continue feel free to work at your own pace, but, turn in two at a time for grading.
Today we learned of LD50 (lethal dose for 50% of a population) of certain chemicals such as caffeine.
Here's a video link on LD50
http://www.cleanvideosearch.com/media/action/yt/watch?videoId=flKJ5Iqfl9Q
Tomorrow there will be a diagnostic test for the majority of the period.
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