Octopus belongs to class
mollusca
cephalopoda
anneilida
arthropoda
Correct Answer :
B. cephalopoda
Related Questions
Which of the following is not an acoelomate animal ?
Sponge
Jelly fish
Tapeworm
Roundworm
Flame cells, parenchyma and a pair of longitudinal nerve cords are found in
Taenia
Peripatus
Ascaris
Musca
Euplectella (Venus flower basket) is a
porifer
protozoan
coelentrate
nematode
The phylum arthropoda is characterised by the presence of
chitinous exoskeleton, external segmentation and paired appendages
chitinous exoskeleton, external segmentation and paired jointed appendages
chitinous exoskeleton and paired antennae
chitinous exoskeleton, antennae and compound eyes
Which of the following is represented by the largest number of species ?
Insecta
Protozoa
Mammalia
Aves
The concept of homology can be applied to
gross structures of the body
physiological mechanisms
biochemical similarities
all of these
Which of the following has a diaphragm between the thorax and abdomen
Frog
Lizard
Pigeon
Whale
Vertebrates possess
well developed body cavity with alimentary canal
dorsal tubular nerve cord
ventrally situated heart
all of these
The mammals of order Rodentia have
long incisors
short incisors
long canines
long molars
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
National mammal of India is
cow
peacock
lion
tiger
Which one of the following is a metatherian mammal ?
Hystrin
Tachyglossns
Diadelphyes
None of these
Turbellarians are
parasitic flatworms
free living flatworms
parasitic tapeworms
free living tapeworms
Which one of the following is a matching set in animal classification based on correct sequence of phylum ?
Liver fluke, tapeworm, roundworm, guinea worm
Oyster, ship-worm, octopus, cuttle fish
Prawn, neries, crab, millipede
Sea urchin, sea fan, sea lily, sea pen
A triploblastic animal in which I mesenchyme fills the space between ectoderm and endoderm is
Sea anemone
Planarian
Pheretima
Starfish
True fishes possess gills and fins. Which of the following is not a true fish ?
Silver fish
Goldfish
Silver carp
Seahorse
The correct phylogenetic sequence in taxonomy is
Pisces, Amphibia, Reptilia, Mammalia
Pisces, Reptilia, Amphibia, Mammalia
Amphibia, Pisces, Reptilia, Mammalia
Amphibia, Reptilia, Pisces, Mammalia
Which one is a cold blooded animal
Penguin
Whale
Otter
Tortoise
Tube feet are the locomotory organs found in
Protozoans
Arthropods
Echinodermata
Molluscs
Which of the following belongs to the same phylum ?
Mollusca, cockroach, centipede
Turbellaria, cestoda, trematoda
Both (a) and (b)
None of these
Which is the common character between all mammals ?
They are viviparous
They are herbivores
They are carnivores
They have 7 cervical vertebrae
Tortoises and turtles are included under order
Reptilia
Squamata
Chelonia
None of these
Which of the following is not a part of true body cavity ?
Pleural cavity
Pericardial cavity
Peritoneal cavity
The cavity inside the stomach and intestine
Coelentrates generally include the animals which are
radial symmetrical and triploblastic
radial symmetrical and diploblastic
bilateral symmetrical and triploblastic
biradial symmetrical and diploblastic
Which of the following is not a deuteros-tome phylum ?
Mollusca
Echinodermata
Hemichordata
Urochordata
One of these is a metatherian mammal
Echidna
Kangaroo
Pangolin
Panda
The rules for the naming of living organisms were first established by
John Ray
Charles Darwin
Carolus Linnaeus
Robert Gunther
Heart pumps only impure blood in case of
shark
whale
frog
lizard
The smallest unit of classification in animals is
variety
species
sub species
genus
The main basis of classification of Phylum Protozoa is
size
locomotary organelles
shape
number of nuclei