Science 9 - Students watched a video pertaining to the different types of ecosystems found on the planet. They then read a section from their textbook and answered questions from both the video and the textbook. Answers will be gone over tomorrow in class.   Biology 112 - Students finished looking at the respiratory system today. Review questions were assigned and time will be given in class to work on them tomorrow. Students will also start looking at the circulatory system tomorrow.