Answer:
The correct answer is True.
An antigen is any substance that triggers an immune response. This can include foreign macromolecules, or even harmless substances that the body identifies as foreign. Unnecessary immune responses to harmless antigens can lead to allergies or autoimmune diseases.
Any substance that triggers an immune response is known as an antigen. Antigens are usually foreign macromolecules that are recognized by the cells of the immune system. However, an individual's immune system may also identify harmless substances as antigens, leading to an immune response, such as in the case of allergies or autoimmunity.
In the case of allergies, an individual's immune system reacts to a harmless protein or substance, like pollen, thereby causing symptoms like sneezing or itchy, watery eyes. This is due to an overactive immune response, known as a hypersensitivity response, resulting in the synthesis of IgE antibodies that mediate the allergic reaction.
Autoimmune responses, on the other hand, occur when an individual's immune system mistakenly attacks the body's own cells, causing diseases like rheumatoid arthritis or systemic lupus erythematosus. These arise from a breakdown in tolerance, a process that usually suppresses immune responses to harmless macromolecules.
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it's true
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Heart health
Lung disease
Bone density
A possible result of poor muscle strength is back pain. Thus, the correct option is A.
Muscle strength may be defined as the ability of your muscles that lift an amount of force easily.
Poor muscle strength may be illustrated that your muscles do not have the capability to lift a high amount of force. But when it is made unknowingly it causes back pain, injury, weaknesses, etc.
Therefore, the correct option is A.
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