caricature picture of leptospirillum ferriphilum holding a sign

amoeba analysis assay bacilli bacillus bacteria bacterium biotechnology board bring cartoon caution cell cells character clue cute design emoticon emotion expression ferriphilum forewarning funny germ germs happy icon illustration lab laboratory leptospirillum mark mascot microbacillus microbe microbiology organism sample science sign smile street style symbol system test vector warning