Members of which phylum exhibit adaptations widely varied environmental conditions ?
Annelida
Platyhelminthes
Echinodermata
Mollusca
Correct Answer :
D. Mollusca
Related Questions
In which of the following sets, groups are not correctly matched ?
Onychophora, Myriapoda, Arachnida
Hydrozoa, Scyphozoa, Anthozoa
Polychaeta, Hirudiniea, Oligochaeta
Gastropoda, Rhizopoda, Scaphopoda
For finding a haemocoel which animal you will select ?
Earthworm
Hydra
Ascaris
Scolopendra
Which of the following is a matching set of groups in animal classification ?
Annelida, Porifera and Mammals as phyla
Hydrozoa, Mollusca and chordata as phyla
Protozoa, Reptilia and Mammalia as classes
Insecta, Cephalopoda and Aves as classes
Bony plates are found in addition to scales in
hag fish
eel
flyingfish
seahorse
Which of the following is a species ?
Mammalia
Carnivora
Canidae
Catiisfamilaris
The beak of birds is toothed in
Ostrich
Kiwi
Archaeopteryx
Pelican
True fishes possess gills and fins. Which of the following is not a true fish ?
Silver fish
Goldfish
Silver carp
Seahorse
Metamerism is a characteristic feature of
porifera
mollusca
annalida
platyhelminthes
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
Ornithorhynchus is a
dinosaur
duck
fossil bird
monotreme mammal
The generic name of apple snail is
Limax
Pila
Sepia
Murex
Histological differentiation is absent in
Amoeba
Hydra
Earthworm
Cockroach
These species inhabiting different geographical areas are
allopatric
sibling species
morphospecies
sympatric
Aside from a three chambered heart, reptiles are characterised by the presence of
limb girdles
dermal scales
lungs
dorsal nerve cord
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
Which of the following has no segmentation?
Hydra
Earthworm
Centipede
Cockroach
Which of the following have played a part in human evolution, different races adapting to different climate ?
Geographical isolation
Reproductive isolation
Behavioural isolation
Hybrid in viability
Biramous appendages are typically found in
insects
crustaceans
annelids
arachnids
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
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
Dolphins are classified under
Pisces
Amphibia
Reptile
Mammals
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
Which of the following sets belongs to the same class ?
Hydra, jelly fish, cray fish
Bat, pigeon, whale
Spider, scorpion, centipede
Whale, otter, kangaroo
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
Which one of the following is a metatherian mammal ?
Hystrin
Tachyglossns
Diadelphyes
None of these
Match the species :
Scorpion, Spider
Scorpion, Obelia, Hydra
Star fish, Obelia, Hydra
Cockroach, Earthworm, Taenia solium
Canal system is characteristic of
hydra
sponge
sea anemone
sea urchin
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