MONOMER AND POLYMER ARE YOU ANSWERS EITHER ONE OF THOSE 2
Endocytosis. That is the process of the intake of food by creating a vesicle.
Kelp is a kind of a brown algae (Phaeophyceae). It is a cold-water seaweed also used as food and as a source of iodine. It is considered safer and better than any other chemicals for the body. It develops through sunlight and it gets nutrients and minerals from the water around it.
The tree would contain carbon.