Animal Kingdom

Two Types of Animals Animals Vertebrates Invertebrates

Invertebrates

Animals Invertebrates Vertebrates Porifera Cnidaria Worms Mollusks Echinoderms Arthropods

Porifera porous body filter feeders live permanently attached Invertebrates porous body filter feeders live permanently attached asymmetry

Cnidarians hollow body mouth is the only body opening Invertebrates hollow body mouth is the only body opening has tentacles to trap prey uses stinging cells to kill prey

Worms 3 types: flat, round, segmented many are parasites Invertebrates 3 types: flat, round, segmented many are parasites most make both sperm and egg some have one body opening some have two body openings

Mollusks soft body most have shells some filter feed Invertebrates soft body most have shells some filter feed some are predators

Echinoderms spiny skin two body openings often radial symmetry in 5’s Invertebrates spiny skin two body openings often radial symmetry in 5’s

Centipedes & Millipedes Arthropods Invertebrates jointed appendages segmented bodies exoskeleton Centipedes & Millipedes Crustaceans Arachnids Insects