Canal system is characteristic of
hydra
sponge
sea anemone
sea urchin
Correct Answer :
B. sponge
Related Questions
A true terestrial animal among these is
frog
tortoise
salamander
toad
Histological differentiation is absent in
Amoeba
Hydra
Earthworm
Cockroach
Brain coral is
fungia
meandria
astia
none of these
Which of the following has no segmentation ?
Hydra
Earthworm
Cockroach
Centipede
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
Exclusively marine chelones are known as
tortoise
turtles
sea hares
none of these
True fishes possess gills and fins. Which of the following is not a true fish ?
Silver fish
Goldfish
Silver carp
Seahorse
Animals belonging to order Rodentia have
long incisors
long canines
short canines
short incisors
Structures built on a common plan, but modified during the course of evolution : to serve particular function in different animals are regarded as
homologous
analogous
both homologous and analogous
phylogenetically related
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
The term Thylum' in taxonomy was given by
John Ray
Carolus Linnaeus
G.L. Cuvier
All of these
A spider belongs to class
Insecta
Myriapoda
Arachnida
Onychophora
One of the primary characters of chlor-date is
solid ventral nerve cord
dorsal tubular nerve cord
paired nerve cords
ganglionated nerve cord
The correct phylogenetic sequence in taxonomy is
Pisces, Amphibia, Reptilia, Mammalia
Pisces, Reptilia, Amphibia, Mammalia
Amphibia, Pisces, Reptilia, Mammalia
Amphibia, Reptilia, Pisces, Mammalia
The insects of the class Diptera include
termites
beetles
mosquitoes
grasshoppers
Which of the following is not correctly matched ?
Flame cellsplatyhelminthes
Stinging cellscoelenterata
Metameric segmentationmollusca
Gill slitschordata
Which of the following belongs to Mollusca ?
Starfish
Dogfish
Silver fish
Goldfish
Vertebrates possess
well developed body cavity with alimentary canal
dorsal tubular nerve cord
ventrally situated heart
all of these
Which of the following is not an enterocoelic phylum ?
Chordata
Mollusca
Coelentrata
Porifera
Which of the following animals has a diaphragm between the thorax and abdomen ?
Frog
Lizard
Pigeon
Whale
Presence of a vestigeal appendix in man suggests that our forebears were
herbivores
carnivores
omnivores
fruit eaters
Character common in spider, cockroach and centipede is
compound eyes
joint legs
book lungs
green glands
The segmentation which affects both external and internal features represented in
annelida
peripatus
insects
acolopendra
Tapeworm is placed in class
Cestoda
Trematoda
Sporozoa
Suctoria
Egg laying mammals are found in
India
Australia
Africa
South America
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
In fishes, lobed fins are found in
marine fishes
fresh water fishes
lung fishes
none of these
The most important characteristic of class aves is
homeothermous animals
exoskeleton of feathers
bipedal vertebrates
none of these
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
Birds and bats are good fliers. The bat differs from a bird in having
diaphragm
four-chambered heart
wings
small brain