How does structure affect function in biology

Structure affects function in biology through the process of selection or natural selection. And also along the chain of causation, to the goal or success.

Example a tree does not grow fruits for any reason but simply because it has developed.

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.

Bc they get tired from playing with other kittens