porifer
protozoan
coelentrate
nematode
A. porifer
star fish
cartilagenous fish
jellyfish
cuttlefish
Mammalia
Carnivora
Canidae
Catiisfamilaris
pinnae
four-chambered heart
movement on two limbs only
diaphragm
solid ventral nerve cord
dorsal tubular nerve cord
paired nerve cords
ganglionated nerve cord
Protozoans
Arthropods
Echinodermata
Molluscs
sexually reproducing species
asexually reproducing species
self-fertilising species
none of these
Sea anemone
Planarian
Pheretima
Starfish
reptile and bird
reptile and mammals
fish and amphibia
reptile and amphibia
allopatric
sibling species
morphospecies
sympatric
Hyalonema
Euplectalla
Tethya
Leucosolenia
gross structures of the body
physiological mechanisms
biochemical similarities
all of these
Carolus Linnaeus
Charles Darwin
Lamarck
Wallace
fungia
meandria
astia
none of these
Fish
Rat
Frog
Lizard
Flame CellsPlatyhelminthes
Metametric segmentationMollusca
Gill-slitChordata
Stininging cellsCoelenterata
an artificial system of classification
a natural system of classification
a system based on phylogeny
none of these
Platyhelminthessolenocytes
Molluscametamerism
Mammaliadiaphragm
Chordatadorsal tubular nerve cord
limb girdles
dermal scales
lungs
dorsal nerve cord
coral snake
brain coral
tree snake
none of these
aschelminthes
annelida
arthropoda
echinodermata
Coelenterata
Porifera
Annelida
Arthropoda
Cetacea
Chiroptera
lnsectivora
Lagomorpha
Sponge
Jelly fish
Tapeworm
Roundworm
Saw fish
Silver fish
Dogfish
Pipefish
Taenia
Peripatus
Ascaris
Musca
Tea cucumber
Sea urchin
Sea horse
Sea pen
Archaeopteryx is a connecting link between mammals and aves
Duck-bill platypus is a connecting link between reptiles and mammals
Sea horse is a connecting link between fish and horse
Hydra is a connecting link between protozoa and metazoa
Arthropoda
Platyhelminthes
Chordata
Protozoa
termites
beetles
mosquitoes
grasshoppers
an annelid
a true worm
a type of earthworm
an insect