- We read Section 17-2: The Muscular System.
- We did the Workbook pages for Section 17-2.
- We took notes on the Musculoskeletal System Powerpoint Presentation.
What was collected?
- Nothing.
What was assigned?
- Completion of the workbook pages.
Daily Science Fact
Whales and dolphins do not "sleep" in the conventional sense. Because of their undersea environment, whales and dolphins must be conscious breathers: They have to actively decide when to breathe. Consequently, in order to breathe, they have to be conscious. When you're a conscious breather, it's just not feasible to be completely unconscious -- what if you don't wake up in time? The solution for whales and dolphins is to let one half of the brain sleep at a time. In this way, the animal is never completely unconscious, but it still gets the rest it needs.