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.
Spatial and temporal scales in biology
Temporal scales range from short such as enzyme catalysis (10-6) to long such as development or aging (109 s). Spatial scale ranges from macromolecules, organelles, and cells to organisms and populations.
