Animal Phyla
Porifera
Sponges- filter feeders. A loose collection of cells held together by a silicate 'skeleton'
Cnidaria
Jellyfish- have stinging cells ans radical symmetry eat small critters
Platyhelminthes
flatworm(tapeworm)- true organs eat many things some are parasitic have eye spots for detecting light
Nematoda
roundworms- start of a body cavity coelom-"sealoam" tube within a body tube many are parasites
Mollusca
clams, snails- have coelom, bilateral symmetry, muscular foot, have body cavity, cephalopods
Annelida
segmented worms(earthworms)- have fluid fulled coelom true organs, difestive system closed circulatory system
Arthorpoda
Insects, crustaceans, Arachnids- Jointed leg, biramous appendages(two parts), exoskeleton, bilateral symetry
Insects
3 body parts
3 pairs of legs
compound eyes
1 pair of anyennae
Arachnids
2 body segments
8 legs
Poisonus (cholicerea)
Crustaceans
2 compound eyes
2 sets of antennae
3 pairs of mouth parts
Echinodermata
Starfish-radical sysmmetry, marine only
Chordata
Agnatha, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, Mammalia- have a backbone.
Agnatha
Lampery- Jawless fish, open gills, suckermouth
Chondrichthyes
Sharkrays- Cartilaginous fish, open gill slits
Osteichthyes
Pike, pickerel-bony fish, bony skeleton, covered gills, 2 chambered heart, cold blooded
Amphibia
Salamanders- amphibiams, lay eggs in water, breath theough skin, 3 chambered heart, cold blooded
Reptilia
Lizard- scales and nails, amniotic egg, cold blooded? adapted to live on land, 3.5 chambered heart
Aves
birds- 4 chambered heart, feathers, no teeth, warm blooded, hollow bones
Mammalia
Whale-4 chambered heart, feed young milk, warm blooded one funger has nail