Kingdom Animalia

Kingdom Animalia
A brief description of the phylum and their classes.
By Ashley Ellison



I. Acanthocephala-any of an intestinal worms lacking a digestive tract and having a proboscis bearing rows of thornlike hooks

II. Annelida- any of roundish, wormlike animals having long, segmented bodies, a brain and ventral nerve cord, and a closed circulatory system, including polychaetes, oligochaetes, and leeches

A.Polychaeta-any marine, annelid worms, having on most segments a pair of fleshy, leglike appendages bearing numerous bristles
B.Oligochaeta-any of annelid worms, as the earthworm, lacking a definite head and having relatively few body bristles: found chiefly in moist soil and fresh water


III. Arthropoda-any of invertebrate animals with jointed legs, a segmented body, and an exoskeleton, including insects, crustaceans, arachnids, and myriapods

A.Merostomata-Members of this class have a large shield that cov...