snake
chelone
sea snake
lizard
Lizards
Sphenodon
Snakes
Crabs
Their body is covered with dry, horny, mesodermal scales
Their skin is devoid of glands
They are poikilothermous
Their skeletons are more bony than in amphibians
Heloderma
Chameleon
Ophiosaurus
Varanus
cobra
krait
viper
sea snake
movable eyelids
immovable eyelids
noeyeslids
only nictitating membrane
garial
alligator
crocodile
both (b) and (c)
Garden lizard
Cobra
Chameleon
Python
Amphicoelous
Procoelous
Platycoelous
Gastrocoelous
Diapsida
Sauropsida
Ichthyopsida
Synapsida
garden lizard
crocodiles
cobras
vipers
Mabuya
Chameleon
Hemidactylus
None of these
fishes and amphibians
all the reptiles
lizards and snakes
egg laying mammals
Chelonia
Ophidia
Lacertilia
Rhyncocephalia
8 pairs
10 pairs
12 pairs
20 paris
poisonous snake
non-poisonous snake
(a) or (b)
(a) and (b)
turtles and tortoises
alligators
snakes
lizards
krait
viper
sea snake
rat snake
glass snake
blind snake
tree snake
sea snake
Wall lizard
Vipers
Flying lizard
Garden lizard
The eardrum and middle ear are absent in snakes
Turtles are terrestrial whereas tortoises are aquatic
The rami of lower chin is fused in lizards
Crocodiles have a compressed tail
Hetttidaclylus
Chameleon
Draco
Sphenodon
buccal glands
salivary glands
palatine glands
lacrimal glands
acrodont and homodont dentition
homodont and thecodont dentition
heterodont and thecodont dentition
heterodont and acrodont dentition
dorsoventraly flattened
compressed from side to side
cylindrical and tapering
all of these
cobra
python
viper
krait
Lizards have two pairs of pentadactyl limbs
Crocodile has webbed feet
Crocodiles are included under the sub-class Diapsida
The only poisonous lizard is varanus
Glass snake
Coral snake
Rat snake
Blind snake
Eryx johnii
Naja naja
Enhydrina
Bungarus
nervous system
respiratory system
digestive system
excretory system