Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Four levels of taxonomic similarity: <0.5—low degree of similarity; 0.5–0.65—moderate degree of similarity; 0.65–0.8—high degree of similarity; >0.8—very high degree of similarity.
