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1. Red blood cells in the human body develop from stem cells in the bone marrow. These cells lose their nuclei prior to release in the bloodstream providing maximum space for packing in hemoglobin molecules. What types of impacts can this have on the length of cell life and the cell's ability to replicate?

2. describe the information that can be derived from measuring the mitotic index. How might the mitotic index be used to enhance or support agricultural practices?

3. When an adult human stops growing there remain certain cell populations and/or tissue types that require continuous mitosis. Name at least three areas of the human body where constant mitosis is utilized and describe why.


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