Most important characteristic of the mammal is the presence of
pinnae
four-chambered heart
movement on two limbs only
diaphragm
Correct Answer :
D. diaphragm
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
Binomial system of nomenclature in classification was divided by Carolus Linnaeus. It provides the names pertaining to
one scientific and one popular
given by two taxonomists
one generic and one specific epithet
international identifying catalogue
Tube feet are the locomotory organs found in
Protozoans
Arthropods
Echinodermata
Molluscs
Which one of the following is a coelenterate ?
Tea cucumber
Sea urchin
Sea horse
Sea pen
Canal system is characteristic of
hydra
sponge
sea anemone
sea urchin
Chief distinguishing features of mammals are
hairy skin and ovipary
hairy skin and mammary glands
mammary glands and teeth
pinnae and teeth
Diploblastic body with cellular grade of organisation and cellular mesogloea is characteristic of
protozoal
porifera
coelenterata
annelid a
Whale belongs to the taxonomic group
Fishes
Reptilia
Echinodermata
Mammalia
Turbellarians are
parasitic flatworms
free living flatworms
parasitic tapeworms
free living tapeworms
The respiratory organs of crustaceans are
tracheae
book lungs
gills
skin
The beak of birds is toothed in
Ostrich
Kiwi
Archaeopteryx
Pelican
Which of the following animals has a diaphragm between the thorax and abdomen ?
Frog
Lizard
Pigeon
Whale
Which of the following shows deuteros- I tome condition ?
Acoelomate animals
Pseudocoelomate animals
Animals with enterocoel
Animals with schizocoel
These species inhabiting different geographical areas are
allopatric
sibling species
morphospecies
sympatric
The locust is
an arthropod
a mollusc
an insect
an echinoderm
Sea horse is a
fish
mammal
bird
none of these
The segmentation which affects both external and internal features represented in
annelida
peripatus
insects
acolopendra
Egg laying mammals are found in
India
Australia
Africa
South America
Which of the following is not correctly matched ?
Flame cellsplatyhelminthes
Stinging cellscoelenterata
Metameric segmentationmollusca
Gill slitschordata
All worms are mainly
round
parasitic
triploblastic
segmented
Which of the following has no segmentation ?
Hydra
Earthworm
Cockroach
Centipede
Which of the following is not an acoelomate animal ?
Sponge
Jelly fish
Tapeworm
Roundworm
Body segments are said to be homono-mous when
external segments correspond to internal segments
the body of an animal is made up of dissimilar units
all body segments along the length of the body are similar
none of these
A definite number of body segments is found in
leech
tapeworm
earthworm
slug
A suctorial mouth is present in
leech
cockroach
housefly
butterfly
Which one of the following sets has all hermophrodite animals ?
Ascaris, Hydra, Earthworm
Leech, Hydra, Tapeworm
Hydra, Man, Leech
Tapeworm, Toad, Starfish
The generic name of apple snail is
Limax
Pila
Sepia
Murex
Temperature regulation is found in
Fish
Rat
Frog
Lizard
Which of the following has a diaphragm between the thorax and abdomen
Frog
Lizard
Pigeon
Whale
Cloning is possible in nature in
sexually reproducing species
asexually reproducing species
self-fertilising species
none of these