Zoology
Which is the most evolved character in mammals?
A.
The nasal passage is long
B.
Warm blooded
C.
The diaphragm separates the body cavity into thoracic and abdominal cavity
D.
The body is covered with hairs
The "stem reptiles", the cotylosaurs closely resembled:
A.
The labyrinthodont amphibians
B.
The members of elasmobranchii
C.
The anuran amphibians
D.
The prototherians
Which are the first true land vertebrates?
A.
Amphibians
B.
Prototherians
C.
Reptilians
D.
None of these
Which of them do not have lateral appendages?
A.
Chondrichthyes
B.
Osteichthyes
C.
Cyclostomes
D.
None of these
Among the following which statement is incorrect?
A.
Apoda includes primitive burrowing forms
B.
sphenodon is included in Rhynchocephala and is an extinct reptilian
C.
Symbranchiformes includes fishes which are snake like and devoid of scales
D.
Cetacea includes mammals with forelimbs longer than hind limbs
Skull with single median occipital condyle, kidneys without nephrostomes, twelve pairs of cranial nerves and a typical cloaca are characteristic of:
A.
Amphibia
B.
Reptilia
C.
Ctenophora
D.
Aves
Among the following which do not have 12 pairs of cranial nerves?
A.
Amphibia
B.
Reptilia
C.
Mammalia
D.
Aves
Antedon is a member of class:
A.
Echinoidea
B.
Asteroidea
C.
Crinoidea
D.
Ophiuroidea
The scientific names of two common Pakistan's cockroaches are:
A.
Periplaneta americana and Blatta indica
B.
Periplaneta indica and Blatta oreintalis
C.
Periplaneta oreintalis and Blatta americana
D.
Periplaneta americana and Blatta orientalis
Salivary glands are present in:
A.
Annelids
B.
Molluscs
C.
Arthropods
D.
Echinoderms
Class Trematoda includes all:
A.
Blood Flukes
B.
Flatworms
C.
Tapeworms
D.
Flukes
Which pair is correctly matched?
A.
Water vascular system - Sponge
B.
Flame cell - Flatworm
C.
Blubber - Kangaroo
D.
Marsupium - Platypus
Turbellarians are:
A.
Independent round worms
B.
Independent flat worms
C.
Parasitic tape worms
D.
None of these
Corals are formed by:
A.
Molluscs
B.
Coelenterates
C.
Echinoderms
D.
Protozoans
During evolution, which among the following groups first exhibited pentadactyla limbs?
A.
Birds
B.
Reptiles
C.
Amphibians
D.
Mammals
Axolotl is:
A.
An adult salamander amphibians
B.
A sexually mature larva of frog
C.
A sexually mature larva of reptilia
D.
A sexually mature larva of salamander
Mouth is jawless in:
A.
Fishes
B.
Eutherians
C.
Lacertalia
D.
Cyclostomes
The largest whale Balaenoptera is found in the:
A.
Indian ocean
B.
Antarctic ocean
C.
Atlantic ocean
D.
Pacific ocean
Which of the following is not a mammal?
A.
Seal
B.
Penguin
C.
Whale
D.
Dugong
In which of the following animals is Scrotal sac absent?
A.
Horse
B.
Camel
C.
Elephant
D.
Tiger
Birds and reptiles are often clubbed together under:
A.
Synapsida
B.
Therapsida
C.
Sauropsida
D.
Coelenterata
Animals with organ-system level of body organization having jointed legs and a exoskeleton of chitinous cuticle are included in the group:
A.
Arthropoda
B.
Annelida
C.
Reptilia
D.
Coelenterata
Which is an incorrect match?
A.
Crustacea, Myriapode, Arachnida
B.
Polychaeta, Hirudinea, Oligochaeta
C.
Hydrozoa, Scyphozoa, Anthozoa
D.
Gastropoda, Rhizopoda, Scaphopoda
Histological differetiation is absent in:
A.
Amoeba
B.
Hydra
C.
Leech
D.
Starfish
The connecting link between Annelids and Arthropods is:
A.
Boneilia
B.
Limulus
C.
Peripatus
D.
Sipunculus