Answer:
<em>Option 4, an autoimmune disorder, is the correct answer.</em>
Explanation:
An autoimmune disorder can be described as a disorder in which the immune cells of a body attack the own cells of a body.
Lupus can be described as an autoimmune disease which is long termed. In this disorder, a person's immune system attacks its own healthy cells. The immune system is unable to differentiate between the pathogenic cells and the healthy cells of the body. As a result, tissue damage is caused.
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A=a^2
The main function of the cell membrane is that regulates and monitors the movement of specific substances into and out of the cell, permitting only some substances to move across and not allowing others.
Lava is above Earth's surface, magma is below.
