A dynamic character is a character who consciously does a lot of  things in order to make things happen- i.e is a catalyst for  other events. They could be described as ha â¦ ving a lot of get up  and go; they are motivated.
Hemagglutinin, any of a group of naturally occurring glycoproteins that cause red blood cells (erythrocytes) to agglutinate, or clump together. These substances are found in plants, invertebrates, and certain microorganisms.
The name hemagglutinin comes from the protein's ability to cause red blood cells (erythrocytes) to clump together (agglutinate) in vitro. The process is like this: Hemagglutinin (HA) binds to the monosaccharide sialic acid which is present on the surface of its target host cells.