The polarities can be said to be increasing in age based on the distance and polarity.
The spleen is unique because it stores blood and platelets. The spleen acts mostly as a blood filter but also stores extra blood that comes in use in case of hemorrhaging in other parts of the body. the spleen removes old blood cells and recycle the iron contained in red blood cells.
Answer:
They have no use for it, just like they dont have any type of respiratory organs like lungs.
Explanation:
In the case of nutrition and digestion they obtain food by capturing their prey with their pseudopodia. The food is internalized through a type of endocytosis known as phagocytosis. Nutrients are obtained as the enzymes digest the food inside the vacuole and when they are finished the food vacuole dissolves.
