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.
Toxicity of Halomicronema metazoicum (a) and Halomicronema sp. (b) spent medium measured on sea urchin embryos one hour after fertilization by recording the percentage of undivided embryos in controls and in treated samples at various dilutions of the media, from 1:10 to 1:100,000. Ctrl (−) indicates the negative control.
