Well, the major groups of arthropods are crustaceans, arachnids, centipedes, and millipedes.
butter
butter
public and private
Classified and unclassified
warrant and warrantless searches
bushfire and floods
physicians and technologists
Literature is divided into Prose and Poetry.
verbal and performance.
The broad categories of aquatic biomass are primary producers and secondary producers.
Generally they fall into two broad categories: hardware and software.
Spiders do not have antennae.