Agar comes from multiple sources, as many red seaweeds are “agarophytes” (that is, seaweeds containing agar in their cell walls). Species of Gelidium are the most important source of bacteriological (lab-grade) agar. Other main agarophytes, largely used for culinary agar, include red seaweeds from the genera Gracilaria, Pterocladia, Ahnfeltia, and others. Species from the genera Eucheuma, Gigartina, and Chondrus have been used as agarophytes in research during agar shortages.9
We'll review and merge
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Nasa has also asked rival company Blue Origin - which is owned by Jeff Bezos - to come up with an accelerated plan for a lunar lander.
It comes a day after a SpaceX rocket blasted off from Florida carrying two privately constructed lunar landers and a micro rover to the Moon.
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Жители Санкт-Петербурга устроили «крысогон»17:52