1.Explain how chronic bleeding leads to iron deficiency anemia. 2. Explain the signs of anemia that indicate compensation for hypoxia is occurring. 3. Explain why individuals with pernicious anemia...

1.Explain how chronic bleeding leads to iron deficiency anemia.

2. Explain the signs of anemia that indicate compensation for hypoxia is occurring.

3. Explain why individuals with pernicious anemia have a low hemoglobin level.

4. Explain the additional manifestations of pernicious anemia.

5. Why is oral administration of vitamin B12 not recommended as a treatment for pernicious anemia?