Biology — Vertebrates vs Invertebrates
The great divide of the animal kingdom.
Make it your own.
title "Vertebrates vs invertebrates"
set V "Vertebrates"
set I "Invertebrates"
only "V" "Have a backbone; internal skeleton; e.g. fish, mammals"
only "I" "No backbone; about 97% of animals; e.g. insects, worms"
intersect "V,I" "Animals; multicellular; heterotrophic; can move"