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biological
mastery UK /ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl/ US /ˌbaɪ.əˈlɑ.d͡ʒɪ.kəl/adjnoun
card 1 of 10 · fill in the blank
The lab technicians had to carefully handle _____ samples to prevent contamination.
card 1 of 10 · fill in the blank
The lab technicians had to carefully handle _____ samples to prevent contamination.