are ainmals without backbones
the comb jellyfish
What kind of symmetry and nervous system does phylum ctenophora have?
radial or biradial, nerve net
What kind of symmetry, tissues and organs does phylum porifera have?
What kind of symmetry, tissue gut and nervous system does phylum cnidaria have?
radial, epthelium, sac-like, nerve net and muscle
What phylum had the first animal to evolve?
flatworms and tapeworms
what phylkum is the simplest organism with bilateral symmetry organs?
what phylum had the first cephlization and bilateral nerve cord ?
roundworms, pinworms, heartworms, loa loa
what phylum was the 1st with a tube digestive system
spiders insect crustaceans
what phylum has the greatest number of species of any animal?
What kind of skeleton and appendeges do phylum anthropoda have?
hard exoskeleton and jointed
clams squids octopi
What phylum was the first with an advanced body cavty
What animal is the most succesful in phylum anthropoda?
earthworms and lleches
what phylum was the first with segmentation and closed circulatory system
Phylum chordata sometime during life cycle all have what 4 things?
noto chord, nerve chord, pharynx and a tail
Phylum chordata includes 2 invert classes which are....
tunicates and lancelets
A sea peach