The ability of the body to resist foreign microorganisms, such as bacteria, parasites, and viruses, is known as Immunity.
What is Immunity?
The body's defense against infection is provided by the immune system, a complex network of organs, cells, and proteins that also safeguards the body's own cells. Every germ (microbe) that the immune system has ever eliminated is recorded, allowing it to promptly identify and eliminate the microbe if it re-enters the body.
The immune system works to identify and eliminate foreign substances (known as antigens) that the body detects. Antibody production is induced in B lymphocytes (also called immunoglobulins). Specific antigens are locked onto by these proteins.
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<span>The nurse should ask if the patient is having any pain, and if so where the pain is located. The nurse should also ask about the patient's history, for example, does the patient have a family member that has had ulcers in the past. Continuing with patient history, the nurse should inquire about the patient's diet and also ask why the patient thinks they have an ulcer.</span>
The right option is fatigue
<span>Fatigue is a feeling of tiredness, lack of
energy and motivation. Fatigue is a symptom of iron-deficiency anemia, which is
common in pregnancy. During pregnancy, hormonal changes such as increased
progesterone levels, physical changes and emotional changes occur in the body and
this can contribute to decreased energy resulting in fatigue.</span>
The discovery of DNA in the mitochondria supported the endosymbiotic
theory. This is because it was established that, due to mutations in
this DNA there could be the development of new adaptations and species.