Q.1
Which of the following statement is correct?
  • a) Archaeopteryx is connecting link between aves and mammals.
  • b) Duck billed platypus is the connecting link between mammals and reptiles.
  • c) Sea horse is the connecting link between horse and fish.
  • d) Hydra is the connecting link between protozoa and metazoan.
Q.2
Bats can travel with:
  • a) Eyes open and ears closed.
  • b) Eyes plugged and ears open.
  • c) Eyes plugged and ears closed.
  • d) Eyes closed and ears plugged.
Q.3
Solenocytes and metanephridia are the excretory organs of:
  • a) Annelida and Arthropoda.
  • b) Platyhelminthes and mollusca.
  • c) Flatworms and annelida.
  • d) Round worms and flat worms.
Q.4
Which one the following characters are unique to Cnidaria?
  • a) Sexual reproduction.
  • b) Symbiotic association with other organisms.
  • c) Sedentary body forms.
  • d) Nematocysts.
Q.5
Evolution of Porifera from protozoa is evidenced by animals like:
  • a) Euglena.
  • b) Chlamydomonas.
  • c) Volvox.
  • d) Paramoecium.
Q.6
Which of the following is not correct regarding the matching of phylum and its examples?
  • a) Annelida – Aphrodite, Chaetopterus, Bonnelia.
  • b) Mollusca – Teredo, Aplysia, Chaetopleura.
  • c) Aschelminthes – Ancylostoma, Enterobius, Tubifex.
  • d) Arthropoda – Buthus, Leppesma, Leptocorisa.
Q.7
Which of the following is a connecting link between fishes and amphibians?
  • a) Sea horse.
  • b) Gambusia.
  • c) Latimeria.
  • d) Torpedo.
Q.8
Assertion: Marsupials exhibit aplacental viviparity. Reason: Young ones of marsupials are carried to the womb for further development.
  • a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
  • c) Assertion is true but Reason is false.
  • d) Both Assertion and Reason are false.
Q.9
ssertion: Hemichordates were earlier considered as chordates. Reason: Hemichordates have notochord persistent throughout their life.
  • a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
  • c) Assertion is true but Reason is false.
  • d) Both Assertion and Reason are false.
Q.10
Assertion: Some cephalopods can show learned behaviour. Reason: They have closed circulatory system and vertebrate type eyes.
  • a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
  • c) Assertion is true but Reason is false.
  • d) Both Assertion and Reason are false.
Q.11
Identify the set containing larval forms of a phylum:
  • a) Trichemella, Amphiblastula, Parenchymula.
  • b) Miracidium, Cystericus, Metacercaria.
  • c) Muller’s larva, Glochidium, Veliger.
  • d) Doliolaria, Tornaria, Bipinnaria.
Q.12
Find the character shared by Cnidaria and Ctenophora.
  • a) Exclusively aquatic, both marine and fresh water.
  • b) Asexual as well as sexual reproduction.
  • c) Diploblastic condition with coelom.
  • d) External fertilization and indirect development.
Q.13
Select the incorrect pair:
  • a) Diurnal migration – Microfilaria.
  • b) Eutely – Ascaris.
  • c) Apolysis – Taenia.
  • d) Autotamy – Lumbricus.
Q.14
All the following are the features of animals with pseudosegmentation, except the feature:
  • a) Segments are functionally well integrated.
  • b) Newer and newer segments are produced as long as the animal survives.
  • c) New segments are added at the anterior end.
  • d) Animals do not die, if few segments are removed from their body.
Q.15
Match the following:
a. Collar cells Storage of food
b. Thesocytes External covering
c. Sceleroblasts Intracellular digestion
d. Pinacocytes Totipotent cells
e. Archaeocytes Spicules formation.
  • a) a → 4; b → 5; c → 2; d → 1; e → 3
  • b) a → 3; b → 1; c → 5; d → 4; e → 2
  • c) a → 3; b → 1; c → 5; d → 2; e → 4
  • d) a → 5; b → 2; c → 4; d → 3; e → 1
Q.16
Identify the group containing economically important molluscs only:
  • a) Cliona, Pinctada, Locusta, Pheretima.
  • b) Teredo, Unio, Pinctada, Locusta.
  • c) Pinctada, Cliona, Unio, Limulus.
  • d) Unio, Teredo, Pinctada, Perna.
Q.17
Select the secondarily radially symmetrical animal.
  • a) Pleurobranchia.
  • b) Adamsia.
  • c) Cucumaria.
  • d) All of these.
Q.18
The absence of circulatory system in nematodes is compensated by the presence of:
  • a) Thin walled gut.
  • b) Thick walled muscular gut.
  • c) Eutely.
  • d) Secondary coelom.
Q.19
Which of the following is not an advantage of coelomates over pseudocoelomates?
  • a) Peristaltic movement of alimentary canal.
  • b) Regional specialisation of gut into gizzard or stomach and intestine.
  • c) Free and independent contraction and relaxation of visceral organs.
  • d) Formation of Pseudocoelom from blastocoels.
Q.20
Bilaterally symmetrical animals can sense the new environment into which they enter and can respond more effectively and quickly. This is due to:
  • a) Formation of coelom.
  • b) Development of mesoderm.
  • c) Cephalisation.
  • d) Appearance of quadruapedalism.
Q.21
Find the fish which was thought to be extinct until 1938, but later found to be living in small numbers.
  • a) Latimeria chalumnae.
  • b) Malania anjouanae.
  • c) Mugil cephalus.
  • d) Sardinella longiceps.
Q.22
Select true statement: All mammals have seven cervical vertebrae. Renal portal system is absent in cyclostomes. All reptiles have 12 pairs of cranial nerves. All diploblastic animals are radially or biradially symmetrical. All birds except new world vultures have synrix.
  • a) 1, 3 and 5.
  • b) 2, 4 and 5.
  • c) 2, 3 and 4.
  • d) 1, 3 and 4.
Q.23
Match the following:
Column A Column B
a. Belly creepers Herdmania
b. The master of air Didelphis
c. Evolutionary blind offshoot Struthio
d. Mammary foetus Euplectella
e. Non-vertebrate chordate Alligator
  • a) a= 5 ; b = 3; c = 4; d = 2; e = 1
  • b) a= 2 ; b = 3; c = 5; d = 1; e = 4
  • c) a= 4 ; b = 3; c = 1; d = 5; e = 2
  • d) a= 3 ; b = 2; c = 4; d = 1; e =5
Q.24
If one of the following changes was made in the amphibian body, they could have cut the relation with aquatic life. Select the change:
  • a) Cutaneous and bucco-pharyngeal respiration we absent.
  • b) Direct development takes place instead of indirect development.
  • c) Cleiodic eggs were produced.
  • d) Web was absent in hindlimbs.
Q.25
Which of the following is the remnant of notochord found in some adult chordates?
  • a) Nuclei pulposi.
  • b) Stomochord.
  • c) Chorda mesoderm.
  • d) Intervertebral disc.
Q.26
The ‘First key transition’ in the evolution of animal body structure is:
  • a) Formation of perivisceral cavity.
  • b) Appearance of bilateral symmetry.
  • c) Cell aggregates body plan and porous body.
  • d) Appearance of tissues.
Q.27
Five features and names of 5 animals are given below. From these identify the properly matched ones:
Features Animals
a. Water canal system and Spicules Pheretima
b. Endocrine system and Chitinous exoskeleton Dentalium
c. Ambulacral system and tube feet Euplectella
d. Closed circulation and nephridia Apis mellifera
e. Sensory tentacles and feather like gills Asterias
  • a) a → 1; b → 2; c → 3; d → 4; e → 5
  • b) a → 3; b → 4; c → 5; d → 1; e → 2
  • c) a → 3; b → 5; c → 4; d → 1; e → 2
  • d) a → 3; b → 4; c → 5; d → 2; e → 1
Q.28
From the following characteristics, identify the organism: (i) Animal with bilateral symmetry, Triploblasty and shizocoelom. (ii) It possesses paired nerve ganglia and double ventral nerve chord. (iii) Monoecious and direct development. (iv) Dermomuscular body wall and closed circulation.
  • a) Taenia.
  • b) Wucheria.
  • c) Laccifer.
  • d) Pheretima.
Q.29
Maximum life span of 507 years is found in Ocean Quahog. Minimum life span of 1 – 2 weeks is found in:
  • a) Cicada.
  • b) Butterfly.
  • c) Culex.
  • d) Mayfly.
Q.30
Pentamerous radial symmetry, dorsal/upper anus and deuterostomous condition are the characteristics of:
  • a) Asterias and Antedon.
  • b) Dentalium and Chiton.
  • c) Echinus and Aplysia.
  • d) Pinctada and Palaemon.
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