allopatric
sibling species
morphospecies
sympatric
A. allopatric
morphology
Phylogeny
both (a) and (b)
ontogeny
Ostrich
Kiwi
Archaeopteryx
Pelican
fish
mammal
bird
none of these
allopatric
sibling species
morphospecies
sympatric
Salamandar, lizard, penguin and bat
Tortoise, crocodile, crow and bat
Crow, penguin, bat and rat
Turtle, ostrich, spiny ant eater and dog
Frog
Toad
Salamander
Tortoise
an arthropod
a mollusc
an insect
an echinoderm
Flame CellsPlatyhelminthes
Metametric segmentationMollusca
Gill-slitChordata
Stininging cellsCoelenterata
Urochordata
Cephalochordata
Vertebrata
Hemichordata
hairy skin and ovipary
hairy skin and mammary glands
mammary glands and teeth
pinnae and teeth
They are flying animals
They are warm blooded
They are bipedal and have feathers
They are quadruped and have scales
Protozoa and Metazoa
Invertebrata and Vertebrata
Chordata and Non-chordata
Anaima and Enaima
homologous
analogous
both homologous and analogous
phylogenetically related
notochord extends upto head
foot is located on head
head is located on foot
head is fused with thorax
Siren
Ophiosaurus
Triturus
Ichthyophis
Lamprey-Agnatha
Shark-Chond rich thyes
Turtle-Amphibia
Lizard-Reptilia
well developed body cavity with alimentary canal
dorsal tubular nerve cord
ventrally situated heart
all of these
genus
order
class
species
Scales
Eggs
Shelled eggs
Gills
Giraffe
Crocodile
Shark
Ostrich
Hydra
Earthworm
Cockroach
Centipede
Flame cellsplatyhelminthes
Stinging cellscoelenterata
Metameric segmentationmollusca
Gill slitschordata
Cephalochordata
Agnatha
Urochordata
Gnathostomata
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
Insecta
Myriapoda
Arachnida
Onychophora
shark
whale
frog
lizard
radial symmetry
bilateral symmetry
asymmetry
both (a) and (b)
Liver fluke, tapeworm, roundworm, guinea worm
Oyster, ship-worm, octopus, cuttle fish
Prawn, neries, crab, millipede
Sea urchin, sea fan, sea lily, sea pen
sexually reproducing species
asexually reproducing species
self-fertilising species
none of these
python
chameleon
turtle
crocodile