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How do cell membranes help maintain homeostasis? By controlling what substances may enter or leave the cell. What is passive transport? Process where some substances can cross the cell membrane without the input of energy. The movement of molecules from an area of higher concentration to an area of lower concentration. What is a concentration gradient? The difference in the concentration of molecules across a distance. What causes differences to occur? What molecules may.
How to Navigate this Blog. Assignments are posted by week across the top. Simply run your cursor over to check assignments. All papers can be printed from home computers.
How to Navigate this Blog. Assignments are posted by week across the top. Simply run your cursor over to check assignments. All papers can be printed from home computers.
Start your own free website. A surprisingly easy drag and drop site creator.
Candlelight Concert Series 2013 - 2014. On July 23, top students and teachers of the Bergthorson Music Academy were performing at Westacres, in an All-star Student Showcase. Jolanda Oostewegel took some pictures at the event. Click on pictures to enlarge. It is not often .
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