Integrated Principles of Zoology

acid adult ANIMAL KINGDOM ANIMAL PATTERNS annelids anus appendages arthropods Aschelminthes asexual atoms biology blood body wall burrow C. V. Mosby canal cavity cells cellular chemical chitinous chordates chromosomes ciliated cleavage coelenterates coelom common ctenophores cuticle cycle cytoplasm digestive system dorsal duct earthworm eggs electron energy Entoprocta enzymes epidermis excretory female fibers fish flatworms fluid freshwater frog functions ganglia genus germ layers gills glands gonads hydra insects intestine invertebrates larva layer living longitudinal lophophore MAJOR TYPES male mantle marine medusa membrane mesoglea Mesozoa metabolism metamerism metazoans molecules mollusks mouth muscles muscular nematocysts nephridia nerve cord nervous system nucleus oxygen pair parasitic pharynx phyla phylum polyp pore posterior proboscis proglottids protein protoplasm protozoans radial reproductive segments sensory shell snails somites species sperm spiders sponges stages stomach structure surface tentacles tion tissue tube TYPES OF ANIMAL usually ventral vertebrates vessels worms