Final answer:
The liver cannot be considered lymphoid.
Step-by-step explanation:
The organ that cannot be considered lymphoid is the Liver. The lymphoid organs are the red bone marrow, tonsils, spleen, and thymus gland. The liver, on the other hand, is not part of the lymphoid system. It is responsible for important functions such as producing bile, detoxifying harmful substances, and storing vitamins and minerals.