Sponges• No true tissues or organs

• Sessil- Do not move

• Filter feeder

Cnidarians• Sting and capture prey

• Two body plans–polyp and medusa

Medusa

Polp

Flat worms• Approximately 9,000 species• They are flat, examples are tapeworm,

planarian• Most parasitic

• Most small, and have cylinder bodies

• A one way digestive system• Are carnivores, herbivores, omnivores, and some parasites

Round worms

Segmented Worms• Earthworms, sea worms, leech

• Body in segments

Mollusks• Soft bodies usually covered with shells• 3 major groups: gastropods,

bivalves, and cephalopods• Snail=Gastropod Squid=Cephalopod

Bivalve=Clam

Millipedes

• Four legs per segment

• Most are herbivores

Centipedes

• Two legs per segment• Are predators• Some inject venom into their prey

Insects • 6 legs, 3 pairs• 1 pair antennae, 1 or 2 pairs of

wings• 3 body regions: head, thorax,

abdomen

Crustaceans• 3 body sections and usually 3 appendages for chewing• 5 or more pairs of legs• Waxy exoskeleton made of chitin

(polymers) -Ex. Lobster, crayfish, shrimp

Echinoderms• Live on the ocean floor• Sea Stars Sand Dollars are

examples• Some can regenerate

Fish

• A vertebrate that lives in H2O and has Fins

• Largest Group Vertebrates• Have Gills and Scales

Chordates-Vertebrates

Amphibians class• Begin in H2O, Move to Land, Return

to H2O to reproduce• Smooth skin and slimy• Most can breath through their skin

and lungs

Draw and label the earthworm on page 332

Chordates-Vertebrates Reptiles class

• Lay an Egg w/leathery shell• Scaly Skin• Lizards, snakes, turtles, alligators,

crocodiles/Cold Blooded

Arachnids• No antennae• 2 body sections:• 8 legs

Chordates-Vertebrates Birds

• Feathers/ Flight• Egg w/hard shells• 4 chambered heart/Light Bones

Chordates-Vertebrates Mammals class

• Most produce offspring inside the female body

• Fur/hair Got milk!• Endothermic/ Warm Blooded•

Chordates-Vertebrates• Have a nerve cord• Have bone/cartilage around nerve

cord

Fish class• First vertebrates• Breath w/gills• Cold blooded exothermic More

species than all other vertebrates• 2 chambered heart 3 types: jawless,

cartilaginous, bony• Swim bladder controls buoyancy Draw and label the fish on page 385

Draw and label the earthworm on page 332