<span>Cortex</span>
<span>Lymph node can be described as kidney shaped
organ of the lymphatic system and of adaptive immune system that can be found
throughout the body. The major site of lymph nodes is B and T lymphocytes and
other white blood cells. However, lymph
node associates with follicular dendritic cell in the B cell follicle and
fibroblastic reticular cell in the T cells cortex.</span>
I wish you added the diagram but I can tell that the long strings are the spindle fibres.
Answer:
Oils repel water, so it helps these animals keep their fur dry, which helps them stay warm.
