star fish
cartilagenous fish
jellyfish
cuttlefish
D. cuttlefish
earthworm
snake
frog
cow
Coelenterata
Hydrozoa
Scyphozoa
Anthozoa
Mammary glands, hairs, gill slits
Notochord, gill slits and dorsal ! tubular nervous system
Notochord, scales and dorsal tubular nervous system
Gill slits, vertebral column and notochoitl
Amoeba
Hydra
Earthworm
Cockroach
primitive burrowing egg laying mammal
advanced egg laying reptile
primitive egg laying reptile
primitive aquatic egg laying animal
fish
mammal
bird
none of these
cow
peacock
lion
tiger
insects
crustaceans
annelids
arachnids
Hyalonema
Euplectalla
Tethya
Leucosolenia
Pisces, Amphibia, Reptilia, Mammalia
Pisces, Reptilia, Amphibia, Mammalia
Amphibia, Pisces, Reptilia, Mammalia
Amphibia, Reptilia, Pisces, Mammalia
true snake
blind worm
false snake
true worm
Chordata
Mollusca
Coelentrata
Porifera
absence of walking legs
absence of mandibles
absence of wings
presence of walking legs
Frog
Toad
Salamander
Tortoise
flat worms
roundworms
tapeworms
blind worms
Ant eater
Dolfin
Heloderma
Echidna
reptile and bird
reptile and mammals
fish and amphibia
reptile and amphibia
species
taxon
taxis
genus
number of nuclei
shape of the organisms
method of reproduction
locomotary device
Ophiosaurs
Heloderma
Varanus
None of these
Mollusca, cockroach, centipede
Turbellaria, cestoda, trematoda
Both (a) and (b)
None of these
Insecta
Protozoa
Mammalia
Aves
moles, shrews and hedgehogs
monkeys, apes and man
whales and dolphins
kangaroo, lions and wolves
porifer
protozoan
coelentrate
nematode
sexually reproducing species
asexually reproducing species
self-fertilising species
none of these
Roundworms
Earthworms
Amphibian blind worms
Limbless lizards
an artificial system of classification
a natural system of classification
a system based on phylogeny
none of these
Earthworm
Hydra
Ascaris
Scolopendra
Tea cucumber
Sea urchin
Sea horse
Sea pen
Species, genus, family, order, class, phylum
Species, genus, order, family, class, phylum
genus, species, order, family, class, phylum
genus, family, order, class, species, phylum