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.
Sponge cells, fragments, and buds are stored in cryogenic vials, which are put into freezer containers containing isopropyl alcohol that slowly freeze at a rate of 1°C (34°F) per minute until they reach -80°C (-112°F).
