Which organ helps a child develop immunity?
O the thyroid
O the thymus
O the pancreas
O the ovaries
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B. The thymus.

Explanation:

The thymus is a primary lymphoid organ which have T - lymphocytes. T - lymphocytes help in the development of adaptive immunity.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.