Ornithorhynchus is a
dinosaur
duck
fossil bird
monotreme mammal
Correct Answer :
D. monotreme mammal
Related Questions
In title classification of animals a 'family' name is formed by adding
idae as a suffix to the name of the type genus
inae as a suffix
ceae as a suffix
oidea as a suffix
The respiratory organs of crustaceans are
tracheae
book lungs
gills
skin
Which one is an unmatching pair ?
Lamprey-Agnatha
Shark-Chond rich thyes
Turtle-Amphibia
Lizard-Reptilia
According to Whittaker, the term 'protista' includes
all types of single celled eukaryotic organisms
all types of single celled plants, animals as well as bacteria
all types of bacteria and blue green algae
all types of sinlge celled eukaryotes and prokaryotes
Which of the following animals has a diaphragm between the thorax and abdomen ?
Frog
Lizard
Pigeon
Whale
Monotremata is a group of animals which includes
fishes with a sinlge gill aperture
insects with a single pair of functional spiracles
mammals with a single common cloacal opening
protozoans with single flagellum
A natural system of classification is based upon
natural relationships, reflecting evolutionary relationship
morphological similarities between organisms
embryologicall, biochemical, phisio-loical and ecological considerations
both (b) and (c)
The locust is
an arthropod
a mollusc
an insect
an echinoderm
The group amniota includes
birds and mammals
birds and reptiles
reptiles and mammals
reptiles, birds and mammals
Flame cells, parenchyma and a pair of longitudinal nerve cords are found in
Taenia
Peripatus
Ascaris
Musca
The most highly advanced character in reptilia is the presence of
four-chambered heart
shelled eggs
thecodont dentition
powerful jaws
Brain coral is
fungia
meandria
astia
none of these
For finding a haemocoel which animal you will select ?
Earthworm
Hydra
Ascaris
Scolopendra
Which one of the following sets has all hermophrodite animals ?
Ascaris, Hydra, Earthworm
Leech, Hydra, Tapeworm
Hydra, Man, Leech
Tapeworm, Toad, Starfish
Which of the following animals has a ventral nerve cord
Frog
Cockroach
Hydra
Earthworm
Apart from mammals, the other group of animals maintaining high and constant body temperature is
insects
birds
fishes
reptiles
Most important characteristic of the mammal is the presence of
pinnae
four-chambered heart
movement on two limbs only
diaphragm
Tapeworm is placed in class
Cestoda
Trematoda
Sporozoa
Suctoria
Cephalophoda is a class of animals in which
notochord extends upto head
foot is located on head
head is located on foot
head is fused with thorax
Taenia, Periplaneta and Pheretima are non-chordates because
their body is segmented
they do not possess a post-anal tail
they do not have a coelom
all of these
Which of the following has no segmentation?
Hydra
Earthworm
Centipede
Cockroach
Platyhelminthes are called
flat worms
roundworms
tapeworms
blind worms
Which one is characteristic for birds ?
They are flying animals
They are warm blooded
They are bipedal and have feathers
They are quadruped and have scales
One of the following is considered as a living and connecting link between Annelida and Arthropoda:
Peripatus
Limulus
Balanoglossus
Sphenodon
One of the following is not a true fish :
Saw fish
Silver fish
Dogfish
Pipefish
Which of the following belongs to Mollusca ?
Starfish
Dogfish
Silver fish
Goldfish
Biramous appendages are typically found in
insects
crustaceans
annelids
arachnids
Hair of bat and feathers of pigeon are
homologous structures
analogous structures
both (a) and (b
integumentary derivatives
Which of the following has a diaphragm between the thorax and abdomen
Frog
Lizard
Pigeon
Whale
Members of which phylum exhibit adaptations widely varied environmental conditions ?
Annelida
Platyhelminthes
Echinodermata
Mollusca