Natural system of classification has the basis of
morphology
Phylogeny
both (a) and (b)
ontogeny
Correct Answer :
C. both (a) and (b)
Related Questions
Which of the following is represented by the largest number of species ?
Insecta
Protozoa
Mammalia
Aves
The term "Monera" stands for
all prokaryotes
bacterai, blue green algae and sinlge celled eukaryotes
bacteria, blue green algae and single celled eukaryotic animals
single celled eukaryotes and prokaryotes
Euplectella (Venus flower basket) is a
porifer
protozoan
coelentrate
nematode
Tortoises and turtles are included under order
Reptilia
Squamata
Chelonia
None of these
The centipede has
100 legs
50-100 legs
As many legs as body segments
As many pairs of legs as body segments
The concept of homology can be applied to
gross structures of the body
physiological mechanisms
biochemical similarities
all of these
Spider is not included under class insects because of
absence of walking legs
absence of mandibles
absence of wings
presence of walking legs
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
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
Which of the following is homiother-mous ?
Lizard
Frog
Rabbit
Cuttlefish
Which of the following belongs to Mollusca ?
Starfish
Dogfish
Silver fish
Goldfish
Diploblastic body with cellular grade of organisation and cellular mesogloea is characteristic of
protozoal
porifera
coelenterata
annelid a
Which one of the following is a coelenterate ?
Tea cucumber
Sea urchin
Sea horse
Sea pen
Sepia is also known as
star fish
cartilagenous fish
jellyfish
cuttlefish
Exclusively marine chelones are known as
tortoise
turtles
sea hares
none of these
Temperature regulation is found in
Fish
Rat
Frog
Lizard
True fishes possess gills and fins. Which of the following is not a true fish ?
Silver fish
Goldfish
Silver carp
Seahorse
Taxonomy is the science that deals with the classification of
plants
animals
microorganisms
living organisms
Platyhelminthes are called
flat worms
roundworms
tapeworms
blind worms
Which of the following belongs to the same phylum ?
Mollusca, cockroach, centipede
Turbellaria, cestoda, trematoda
Both (a) and (b)
None of these
The basic unit of taxonomy is
genus
order
class
species
The body of Hydra is
asymmetrical
symmetrical
bilaterally symmetrical
radially symmetrical
Sea horse is a
fish
mammal
bird
none of these
The generic name of apple snail is
Limax
Pila
Sepia
Murex
Which of the following is not a diploblas-tic group ?
Porifera
Coelentrata
Annelida
Platyhelminthes
In which of the following sets, groups are not correctly matched ?
Onychophora, Myriapoda, Arachnida
Hydrozoa, Scyphozoa, Anthozoa
Polychaeta, Hirudiniea, Oligochaeta
Gastropoda, Rhizopoda, Scaphopoda
Vertebrates possess
well developed body cavity with alimentary canal
dorsal tubular nerve cord
ventrally situated heart
all of these
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
Bony plates are found in addition to scales in
hag fish
eel
flyingfish
seahorse
Whale, monkey and bat have seven cervical vertebrae. Which one has the same number of cervical vertebrae ?
Giraffe
Crocodile
Shark
Ostrich