adult
anal
animal cell
anus
association
biological
biology
blood
conjunction
disease
dna
educational
egg
embryonic
flat
fluke
histology
larva
liver
medical
medicine
micro
microscope
microscopic
microscopy
parasite
parasitic
parasitism
schistosomiasis
schizoids
schizos
science
scientific
tissue
trematode
worm
zoological
zoology