List one important structural characteristic (a) you observed in the laboratory and the function (b) that the structure complements or ensures for the following cell type: red blood cells
A) (a) Biconcave Disk, (b) Oxygen Transport
B) (a) Ciliated, (b) Movement of Particles
C) (a) Branched, (b) Contraction
D) (a) Single Nucleus, (b) Pumping Blood