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) Prolate spheroid and (b) oblate spheroid. The anoxic central core in both cases (e = 0.75) is depicted in grey, and the hypoxic extent in red, while well-oxygenated cells are shown in green. Both ellipsoids have the same volume necrotic core, but their resultant oxygen distributions are slightly different. See text for discussion.
