The body of Hydra is
asymmetrical
symmetrical
bilaterally symmetrical
radially symmetrical
Correct Answer :
D. radially symmetrical
Related Questions
Euplectella (Venus flower basket) is a
porifer
protozoan
coelentrate
nematode
The locust is
an arthropod
a mollusc
an insect
an echinoderm
Antedon belongs to class
echinodermata
ophiuroidea
crinoidea
echinoidea
In which of the following sets, groups are not correctly matched ?
Onychophora, Myriapoda, Arachnida
Hydrozoa, Scyphozoa, Anthozoa
Polychaeta, Hirudiniea, Oligochaeta
Gastropoda, Rhizopoda, Scaphopoda
A limbless amphibian is
Siren
Ophiosaurus
Triturus
Ichthyophis
Birds and bats are good fliers. The bat differs from a bird in having
diaphragm
four-chambered heart
wings
small brain
Whale, monkey and bat have seven cervical vertebrae. Which one has the same number of cervical vertebrae ?
Giraffe
Crocodile
Shark
Ostrich
Dolphins are classified under
Pisces
Amphibia
Reptile
Mammals
Most important characteristic of the mammal is the presence of
pinnae
four-chambered heart
movement on two limbs only
diaphragm
Which of the following groups of characters is present in all chordates in some or other stage in their life ?
Mammary glands, hairs, gill slits
Notochord, gill slits and dorsal ! tubular nervous system
Notochord, scales and dorsal tubular nervous system
Gill slits, vertebral column and notochoitl
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
Segmentation of the body is not represented in
crayfish
frog
grasshopper
starfish
Which of the following is not correctly matched ?
Flame cellsplatyhelminthes
Stinging cellscoelenterata
Metameric segmentationmollusca
Gill slitschordata
Hair of bat and feathers of pigeon are
homologous structures
analogous structures
both (a) and (b
integumentary derivatives
The animals which are found in the soil, can fly, found on land and in water belong to the phylum
Protozoa
Parazoa
Annelida
Arthropoda
Apart from mammals, the other group of animals maintaining high and constant body temperature is
insects
birds
fishes
reptiles
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 rules for the naming of living organisms were first established by
John Ray
Charles Darwin
Carolus Linnaeus
Robert Gunther
A reptile with a four-chambered heart is
python
chameleon
turtle
crocodile
The body of Hydra is
asymmetrical
symmetrical
bilaterally symmetrical
radially symmetrical
Only poisonous lizard of the world is
Ophiosaurs
Heloderma
Varanus
None of these
Turbellarians are
parasitic flatworms
free living flatworms
parasitic tapeworms
free living tapeworms
Which of the following is not a true amphibian animal ?
Frog
Toad
Salamander
Tortoise
Salamander belongs to class
Reptilia
Amphibia
Aves
Mammalia
One of the following is not an animal:
Ant eater
Dolfin
Heloderma
Echidna
Presence of a vestigeal appendix in man suggests that our forebears were
herbivores
carnivores
omnivores
fruit eaters
Which of the following does not show J metamerism ?
Roundworms
Earthworms
Amphibian blind worms
Limbless lizards
Archaeopteryx called a connecting link, carried the characters, of
reptile and bird
reptile and mammals
fish and amphibia
reptile and amphibia
The order insectivora of class mammalia includes
moles, shrews and hedgehogs
monkeys, apes and man
whales and dolphins
kangaroo, lions and wolves
Which of the following is not a diploblas-tic group ?
Porifera
Coelentrata
Annelida
Platyhelminthes