Speculate about how and why different opportunists seem to be specifically adapted to take advantage of a limited range of opportunities. In the case of the E. coli K strains, why would the number of...

Speculate about how and why different opportunists seem to be specifically adapted to take advantage of a limited range of opportunities.

In the case of the E. coli K strains, why would the number of acyl chains on E. coli LPS affect the function of a TLR, given that LPS does not bind the TLR directly?