A patient's doctor suspects pernicious anemia because of the patient's macrocytic anemia. A conclusive diagnosis of pernicious anemia would be made with a test for intrinsic factor antibodies.
<h3>What are intrinsic factor antibodies?</h3>
Immune system-produced proteins called intrinsic factor antibodies are linked to pernicious anemia. This test finds circulating intrinsic factor antibodies (IF antibodies) in blood. Known as parietal cells, these specialized cells line the stomach wall and generate a protein known as the intrinsic factor.
<h3>Define macrocytic anemia.</h3>
When your bone marrow creates excessively large red blood cells, it causes the blood condition known as macrocytic anemia. Red blood cells cannot operate normally without the nutrients that these aberrant blood cells lack. Although macrocytic anemia is not a dangerous sickness, it can have serious health consequences if untreated.
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Answer:
The species was most likely not found in its natural environment and died because of its inability to adapt to the new environment. Animal species have specific characteristics in their behavior and physical appearance that makes them thrive in a particular climate. Polar bears have white fur, thick coats, and a large structure to support themselves and effectively hunt in the Arctic. When placed in a jungle environment, for example, these characteristics are not useful, and would be a burden to them. This is why when a prehistoric animal if found in a different place, it is because it wandered there (out of need or out of confusion) and couldn't adapt.
