<prompt> Translate the following text to SwahiliIn studies with the marine organisms, only one LC50 presumably the combined LC50 from duplicate tests was reported for each toxicity test.  <response>: Katika majaribio ya kemikali za bahari, LC50 moja tu yaelekea LC50 iliyounganishwa kutoka kwa vipimo vya mara mbili iliripotiwa kwa kila mtihani wa sumu. 