英文關鍵字
anaerobic
ancient
animalcule
antique
art
artwork
biology
black
budding
ciliate
diatom
drawing
engraved
engraving
etching
illustration
life
microbe
microbiology
microstoma
old
organism
peritrich
phytoplankton
picture
pond
protist
protista
protozoa
protozoan
stalk
substrate
trichomonas
vintage
vorticella
vorticellidae
water
white
zoology