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Old people have weak immune system. What could be the reason? - Biology

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Question

Old people have weak immune system. What could be the reason?

Short Note

Solution

Thymosin is an important hormone that plays an important role in the immune system but with age, the thymus gland starts to degenerate and thus old people have a weak immune system.

shaalaa.com
Human Endocrine Glands - Thymus Gland
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Chapter 22: Chemical Coordination and Integration - Exercises [Page 127]

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NCERT Exemplar Biology [English] Class 11
Chapter 22 Chemical Coordination and Integration
Exercises | Q 6. | Page 127
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