Lipids are not polymers because they contain one molecule and are not macromolecules.
Fragmentation never occur in a unicellular organism !!
Urine is stored in the Bladder before it leaves the body.
They form memory cells in which those cells remember the same pathogen for faster antibody production, in aid of future infections.
The pigments phycoerythrin and<span> </span><span>phycocyanin</span>