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Science- worksheet

List of all the different animals and their characteristics

Sponges no symmetry, no tissue or organs, tiny pores (holes)
Cnidarians stinging cells, radial symmetry
Worms no legs, bilateral symmetry, long narrow bodies
Worms-Flatworms flat, soft as jelly
Worms-Roundworms cylindrical bodies
Worms-Segmented worms Made up of many small sections called segments
Mollusks soft bodies, unsegmentes,hard shell (usually) organ called foot
Mollusks- Cephalopod foot organ forms tentacles
Arthropods external skeloton Segmented body, joints
Arthropods- Crustaceans two or three body sections, five or more pairs of legs, two pairs of antennae
Arthropods- arachnids two body sections, four pairs of legs, two pairs of antennae
Arthropods- Centipede/Millipede two bodysections, many pairs of legs
Arthropods- insects three body sections 6 legs, one pair of antennea, one or two pairs of wings
Echinoderms internal skeleton, water vascular system-fluid filled tubes
Fishes live in water, have fins, ectotherm, gills, scales
Amphibians Ectotherm, born and reproduce in water, live on land
Reptiles ectotherm, scales, live on land
Birds endotherm, feathers
Mammals Endotherm, skin covered by fur or hair
Vertebrates Spinal cords- nerves running through out their body
Invertebrates no back bone
Created by: horsefanatic63