grade
non-monophyletic grouping of organisms united by morphological or physiological characteristics
Eusporangiate fern
common name
invertebrate
animal without a vertebral column
sea snake
legless reptiles living in the sea
non-avian dinosaur
extinct group of dinosaurs that excludes birds, i.e. Dinosauria \ Aves
flour beetle
member of the darkling beetle genera Tribolium or Tenebrio
worm
any animal with a long, pipe-like body and no limbs
planarian
flatworm of the Turbellaria class
cyst nematode
group of roundworms
helminth
macroscopic, parasitic worm
fish
vertebrate animal that lives in water and (typically) has gills
marine worm
any worm that lives in the sea
protist
eukaryotic organisms that are not animals, plants or fungi
bryophyte
terrestrial plants that lack vascular tissue