What is common in all the cnidarians?
(a) Skeleton composed of calcium carbonate.
(b) Metagenesis.
(c) Gastro-vascular cavity with single opening.
(d) Sexually reproducing medusae.
Which one of the following animals is correctly matched
with its one characteristic and the taxon?
Animals Characteristic Taxon
(a) Millipede Ventral nerve cord Arachnida
(b) Macropus Oviparous Mammalia
(c) Rohu Pectoral and pelvic fins Chordata
(d) Sea anemone Triploblastic Cnidaria
What is common among silverfish, scorpion, crab and
honeybee?
(a) Compound eyes.
(b) Poison glands.
(c) Jointed appendages.
(d) Metamorphosis.
Similarity between Calotes, Aptenodytes Macropus and
Hyla is
(a) Warm blooded condition.
(b) Completely lungs breathed animals.
(c) Nucleated RBC.
(d) Ventral muscular heart and kidneys for excretion.
Radial symmetry is usually exhibited in animals, which
(a) Are aquatic.
(b) Have ciliary mode of feeding.
(c) Are attached to some substratum (sedentary).
(d) Perform directional movement
Which of the following is not a characteristic feature of
phylum hemichordata ?
(a) The body is cylindrical and is composed of an
anterior proboscis, collar and long trunk.
(b) Circulatory system is of open type
(c) Sexes are not separate.
(d) Fertilisation is external.
Adult jawed vertebrates (Gnathostomes) possess all
of the following features, except.
(a) Ventral muscular heart, myogenic.
(b) Kidney for osmoregulation.
(c) Paired appendages, which may be fins or limbs.
(d) Well developed persisting notochord.
The echinoderms possess many characters which
make them evolutionary closer to the chordates. Which
one of the following character does not fall into this
category ?
(a) Presence of an enterocoelous coelom.
(b) Presence of ‘tube-within-a-tube’ type of body plan.
(c) Presence of a mesodermal skeleton.
(d) Development of anus earlier than the mouth
Which of the following is not matching set of a class
and its three examples ?
(a) Mammalia - Ornithorhynchus, macropus,
Pteropus
(b) Aves - Struthio, Psittacula
Aptenodytes
(c) Reptilia - Naja, Testudo, Neophron
(d) Chondrichthyes - Scoliodon, Pristis
Carcharodon
Which of the following is incorrect with respect to one example
for each of the following ?
(a) An animal which migrates for : Petromyzon
spawning into rivers. Their
characteristic ammocoete
larvae after metamorphosis
migrate to ocean
(b) A fish with poison sting : Torpedo
(c) The characteristic feature of : Struthio
Aves are the presence of
feathers and most of them can
fly except flightless birds like
(d) A flightless bird present in : Aptenodytes
Antarctica
Which of the following set of animals are oviparous,
homeothermal with dicondylic skull ?
(a) Struthio, Pavo, Neophron
(b) Macropus, Pteropus, Balaenoptera
(c) Hippocampus, Catla, Clarias
(d) Ornithorhynchus, Echidna, Platypus
Which of the following statement (i-v) are incorrect?
(i) Parapodia are lateral appendages in arthropods
used for swimming.
(ii) Radula in molluscs are structures involved in
excretion.
(iii) Aschelminthes are dioescious.
(iv) Echinoderm adults show radial symmetry.
(v) Ctenophorans are diploblastic.
(a) (i) and (ii)
(b) (i) and (iii)
(c) (i), (iv) and (v)
(d) (iii) and (v)
Which of the following statement(s) is/are correct
regarding class aves?
(i) The forelimbs are modified into wing and the
hindlimbs generally have scales and are
modified for walking, swimming or clasping the
tree branches.
(ii) Heart is completely four-chambered.
(iii) They are warm-blooded (homoiothermous)
animals i.e., they are able to
maintain a constant body temperature.
(iv) They are oviparous and development is direct.
(a) Both (i) and (iii)
(b) Both (i) and (iv)
(c) (i), (ii) and (iii)
(d) All of these
Which of the following statement(s) is/are correct
regarding phylum aschelminthes?
(i) The body is circular in cross-section hence the
name roundworms.
(ii) Alimentary canal is complete with a well
developed muscular pharynx.
(iii) Sexes are separate (dioecious), i.e., males and
females are distinct.
(iv) Nephridia help in osmoregulation and excretion.
(a) (i) and (ii)
(b) (iii) and (iv)
(c) (i), (ii) and (iii)
(d) All of these
Which one of the following groups of animals is
correctly matched with its characteristic feature
without even a single exception?
(a) Reptilia : Possess 3- chambered heart with one
incompletely divided ventricle.
(b) Chordata : Possess a mouth provided with an
upper and lower jaw.
(c) Chondrichthyes : Possess cartilaginous
endoskeleton.
(d) Mammalia : Give birth to young one
Which of the following is a correct match of a phylum
with their examples?
(a) Platyhelminthes – Planaria, Schistosoma,
Enterobius.
(b) Mollusca – Loligo, Sepia, Octopus.
(c) Porifera – Spongilla, Euplectella, Pennatula.
(d) Cnidaria – Bonellia, Physalia, Aurelia
Hemichordates have now been placed with the
non-chordates, close to echinoderms, because true
(a) Notochord is absent.
(b) Pharyngeal gill-slits are lacking.
(c) Dorsal nerve cord is absent.
(d) Heart is lacking
In porifera water enters into central cavity spongecoel
through minute pores in the body wall is called:
(a) Ostia
(b) Osculum
(c) Medriporite
(d) Both (a) and (b)
Which of the following character is not true for
porifera?
(a) Hermaphrodite.
(b) Reproduce asexually by fragmentation.
(c) Fertilisation is internal.
(d) Development is direct.
Scypha is member of the following phylum:
(a) Ctenophora
(b) Coelenterata
(c) Porifera
(d) Echinodermata
Given are the four matches of phyla with their
characeristic cells:
A. Coelenterata - Nematocytes.
B. Porifera - Choanocytes.
C. Ctenophora - Solenocytes.
D. Platyhelminthes - Nephrocytes.
Mark the option that has both correct matches:
(a) A, B
(b) B, C
(c) C, D
(d) B, D
Which of the following organism is correctly matched
with its common name?
(a) Aurelia - comb jelly.
(b) Adamsia - sea anemone.
(c) Ancylostoma - pinworm.
(d) Aplysia - sea mouse.
Gastro-vascular cavity found in:
(a) Ctenophora.
(b) Porifera.
(c) Coelenterata.
(d) Platyhelminthes.
Which of the following is true for metagenesis?
(a) Polyps produce medusae sexually and
medusae form the polyps asexually.
(b) Polyps produce medusae asexually and
medusae from the polyps asexually.
(c) Polyps produce medusae asexually and
medusae form the polyps sexually.
(d) Polyps produce medusae sexually and
medusae from the polyps sexually.
Select the correct option :
(a) Cnidarians exhibit two forms polyp and
medusa.
(b) Bioluminescence is well marked in
ctenophores.
(c) Coelenterata are bilaterally symmetrical,
triploblastic and acoelumate animals.
(d) Flame cells helps in excretion and respiration.
Which of the following is not correct for
platyhelminthes?
(a) Flame cells help in osmoregulation and
excretion.
(b) Sexes are not seprate.
(c) Fertilisation is internal and development is
through many larval stages.
(d) Some members like Taenia possess high
regeneration capacity.
In which of the following Taenia (Tapeworm), Fasciola
(Liver fluke) included:
(a) Coelenterates
(b) Ctenophores
(c) Platyhelminthes
(d) Arthropods
Given below are four statements regarding
Aschelminthes:
(A) They are bilaterally symmetrical and
triploblastic.
(B) They are dioecious.
(C) All are plants or animals's parasites.
(D) Coelomate.
Mark the option that has both the correct statements:
(a) (A), (B)
(b) (A), (C)
(c) (B), (C)
(d) (B), (D)
Which statement regarding Nereis is wrong?
(a) It has nephridium for excretion.
(b) It is metamerically segmented.
(c) It is monoecious.
(d) It has parapodia for swimming.
In which of the following metamerically segmented
body present?
(a) Nereis
(b) Ascaris
(c) Taenia
(d) Adamsia
Respiratory organs in arthropoda are:
(a) Gills.
(b) Book gills.
(c) Book lungs or tracheal system.
(d) All of the above.
The space between the hump and the mantle is
called the mantle cavity in which _______ are
present.
(a) Foot
(b) Radula
(c) Feather like gills
(d) Eyes
What is the function of radula found in molluscans?
(a) Respiration
(b) Excretion
(c) Feeding
(d) Both (a) and (b)
Absence of excretory organs, great power of
regeneration and exclusively marine animals belong
to the phylum:
(a) Mollusca
(b) Echinodermata
(c) Fishes
(d) Arthropoda
Which of the following not related with
echinodermates?
(a) Digestive system is complete.
(b) Anus on the lower (ventral) side and mouth on
the upper (dorsal) side.
(c) Sexes are separate.
(d) Fertilisation is usually external.