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.
(A) Rotor allowing the centrifugation of 10 miniaquariums without a food supply and a water cleaning system. (B) Each miniaquarium is 80 mm long, 40 mm wide, and 20 mm high and has two transparent faces that are permeable to O2 and CO2 but impermeable to H2O. In (B), amphibian tadpoles can be seen.
