A pearl oyster belongs to class
mollusca
bivalvia
scaphopoda
gastropoda
Correct Answer :
B. bivalvia
Related Questions
Flying bats are included under which order of class Mammalia ?
Cetacea
Chiroptera
lnsectivora
Lagomorpha
According / to Whittaker, the five kingdoms into which all living beings are classified are
Monera, Protista, Metaphyta, Meta-zoa and Parazoa
Monera, Protista, Fungi, Plantae and Animalia
Mpnera, Prokaryotes, Fungi, Plantae and Animalia
Prokaryotes, Eukaryotes, Fungi, Plantae and Animalia
Which one of the following sets of animals are homeothermic ?
Salamandar, lizard, penguin and bat
Tortoise, crocodile, crow and bat
Crow, penguin, bat and rat
Turtle, ostrich, spiny ant eater and dog
A spider belongs to class
Insecta
Myriapoda
Arachnida
Onychophora
The type of symmetry best suited to non-motile organisms is
radial symmetry
bilateral symmetry
asymmetry
both (a) and (b)
Which of the following is not a deuteros-tome phylum ?
Mollusca
Echinodermata
Hemichordata
Urochordata
Vertebrates possess
well developed body cavity with alimentary canal
dorsal tubular nerve cord
ventrally situated heart
all of these
The larval forms called bladder worms are characteristic of
intestinal parasites
earthworms
roundworms
tapeworms
Which of the sponge is given as a gift in Japan?
Hyalonema
Euplectalla
Tethya
Leucosolenia
Segmentation of the body is not represented in
crayfish
frog
grasshopper
starfish
Exclusively marine chelones are known as
tortoise
turtles
sea hares
none of these
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
Whale, monkey and bat have seven cervical vertebrae. Which one has the same number of cervical vertebrae ?
Giraffe
Crocodile
Shark
Ostrich
The respiratory organs of crustaceans are
tracheae
book lungs
gills
skin
True fishes possess gills and fins. Which of the following is not a true fish ?
Silver fish
Goldfish
Silver carp
Seahorse
Histological differentiation is absent in
Amoeba
Hydra
Earthworm
Cockroach
Spider is not included under class insects because of
absence of walking legs
absence of mandibles
absence of wings
presence of walking legs
Birds and bats are good fliers. The bat differs from a bird in having
diaphragm
four-chambered heart
wings
small brain
Which is a matching set in taxonomy ?
Liver fluke, tapeworm, roundworm
Sea urchin, sea fan, sea cucumber
Leucosolenia, Sycon, Euspongia
Plasmodium, Hydra, Planaria
Which of the following is not correctly matched ?
Flame CellsPlatyhelminthes
Metametric segmentationMollusca
Gill-slitChordata
Stininging cellsCoelenterata
Archaeopteryx called a connecting link, carried the characters, of
reptile and bird
reptile and mammals
fish and amphibia
reptile and amphibia
Which one of the following is a metatherian mammal ?
Hystrin
Tachyglossns
Diadelphyes
None of these
The main basis of classification of Protozaoa is
number of nuclei
shape of the organisms
method of reproduction
locomotary device
A cuttle fish belongs to
teleostei
mollusca
pisces
echinodermata
The correct phylogenetic sequence in taxonomy is
Pisces, Amphibia, Reptilia, Mammalia
Pisces, Reptilia, Amphibia, Mammalia
Amphibia, Pisces, Reptilia, Mammalia
Amphibia, Reptilia, Pisces, Mammalia
Cephalisation is a characteristic feature of
immotile, radially symmetrical animals
motile, bilaterally symmetrical animals
bilaterally symmetrical, non-motile terrestrial animals
both (b) and (c)
One of these is a metatherian mammal
Echidna
Kangaroo
Pangolin
Panda
Ornithorhynchus is a
dinosaur
duck
fossil bird
monotreme mammal
Sea horse is a
fish
mammal
bird
none of these
Which of the following belongs to Mollusca ?
Starfish
Dogfish
Silver fish
Goldfish