1) The maintenance of internal favourable conditions by a self regulated mechanism irrespective of changes in the environment is called:
1) Entropy
2) Enthalpy
3) Homeostasis
4) Steady state

2) Read the following statements
I) Linnaeus considered species as a basic unit of classification
II)Buffon proposed the idea of evolution of a species
III) Dobzhansky introduced the concept of Mendelian population
1) I & II correct
2) II & III correct
3) I & III correct
4) All are correct

3) I) Biodiversity hot spots are characterized by very high levels of species richness and low degree of endemism
II) Minimally disturbed area for the conservation of biosphere resources is the biosphere reserve
III) Specific endangered fauna are protected in wild life sanctuaries
IV) Total number of biodiversity hot spots in India are 34
In the above correct statements are
1) I  II  IV
2) II  III  IV
3) I  IV
4) II  III

4) Matching the following

   Group-A       Group-B
A.Sarguja 1.Biodiversity hot spots
B.Norman Myers  2.Ailurus
C.Genebanks 3.Sus salvanius
D.Sus salvanius 4.Sacred grove
E.Red panda 5.Grus leucogeranus

                             6.Ex-situ conservation
1) A-6, B-4, C-3, D-2, E-5
2) A-3, B-6, C-4, D-1, E-2
3) A-4, B-3, C-5, D-2, E-1
4) A-4, B-1, C-6, D-3, E-2

5) Which one of the following is mismatch
1) Spiral cleavages-Protostomes
2) fate of blastopore fixed late in the development Deuterostomes
3) Peritoneal layer lines the body cavity Pseudocoelomates
4) Body cavity enclosed inside an outside by muscles-Coelom

6) Peristalsis of alimentary canal occurs Independent of the contraction and relaxation of body wall in
1) Acoelomates
2) Pseudocoelomates
3) Eucoelomates
4) Both 2and 3

7) Match the following and choose the correct combination

     List  I      List  II
A. Pancreas 1.Holocrine
B. Goblet cell  2.Unicellular
C. Mammary glands  3.Apocrine
D. Sebaceous glands 4.Merocrine

   A B C D
1) 4 2 1 3
2) 4 3 2 1
3) 2 4 3 1
4) 4 2 3 1

8) Arrange the following parts of a compact bone (As seen in T.S of a compact bone) from outer to inner
a) Concentric lamella 
b) Endosteum
c) Bone marrow 
d) Periosteum
e) Outer circumferential lamella
f) Inner circumferential lamella
1) d  e  a  f  b  c
2) a  b  c  d  e  f
3) e  d  a  b  f  c
4) d  a  e  b  f  c

10) Assertion (A) : Cardiac muscle is highly resistant to fatigue
Reason (R): It is facilitated with continuous anaerobic respiration
1) Both A and R are true and R is the correct explanation of A
2) Both A and R are true and R is not the correct explanation of A
3) A is true but R is false
4) A is false but R is true

11) Polyembryony and polymorphism exhibited by following organisms respectively
1) Aurelia & Adamsia
2) Euplectella & Euspongia
3) Enterobius & Ancylostoma
4) Fasciola and Physalia

12) A characteristic biological phenomenon seen in Ctenophores is
1) Bioluminescence
2) Metagenesis
c) Nocturnal Periodicity
4) Lunar periodicity

13) Study the following
a) Filarial worm 
b) Haemadipsa
c) Sea mouse 
d) Bilharzia
e) Dog tapeworm 
f) Arenicola
Which of the above are dioecious?
1) b and e only
2) b, c, d and e
3) a, b, e only
4) a, c, d and f

14) Arrange the following structures in pheretima based on number of segments occupied by them
A. Gizzard 
B. Nervering
C. Blood glands
D. Hearts
1) A-B- C- D
2) A- C-D-B
3) A-D-B-C
4) A-B-D-C

15) Match the correct pairs in List I and List II with reference to Pheretima

    List  I         List  II
A) Pharyngeal nephridia I) 14 th segment
B) Stomach II) 18 th segment
C) Anterior loops III) 9th to10th segments
D) Male genital apertures IV) 4 th, 5th, 6th segment
v) 10th and 11th segments

     A  B C D

16) Read the following statements.
A. Nervous system consists of ganglia, commissures and connectives.
B. Sense organs include eyes, tentacle and osphradium.
C. Osphradium tests the purity of water.
D. Osphradium is absent in bivalves and gastropods.
Which of the above are true about mollusks?
1) B, C and D
2) A, C and D
3) A, B and D
4) B and C

17) Excretory organ of hemichordates is
1) Stomochord
2) Proboscis gland
3) Kidney
4) Neural gland

18) Study the following
I. Chordates are enterocoelous deute rostomes
II. Molluscans are the closest relatives to chordates
III. Nerve cord in chordates is protected by replaced part of notochord 
IV. Vertebrates and craniates are called lower chordates Identify the right statements pertaining to chordates
1) I & II only
2)  III only
3) I  only
4) II & IV only

19) Protochordates are
1) cyclostomes, fishes
2) amphibians, aves
3) tunicates, lancelets
4) reptiles, mammals

20) Match the following about frogs.

    List  I       List  II
A) Spawn  1) Mass of sperms
B) Milt 2) Mass of eggs
C) Amplexus 3) Sexual embracement
D) Retroperitoneum 4) Kidney

1) A  2, B  1, C  3, D  4
2) A  1, B  2, C  4, D  3
3) A  4, B  3, C  2, D  1
4) A  3, B  2, C  1, D  4

21) Match the following regarding birds.

   Column  I    Column  II
A) Rhamphotheca  1) ‘V’ shaped
B) Furcula 2) Sternum
C) Carina 3) Beak covering
D) Pygostyle 4) Posterior caudal vertebrae

1) A  3, B  2, C  1, D  4
2) A  4, B  1, C  2, D  3
3) A  3, B  1, C  2, D  4
4) A  2, B  3, C  4, D  1

22) Study the following about reptiles. I. Wolffian duct functions as vas deferens in males.
II. Teeth are absent in chelonians.
III. Middle ear has three ear ossicles
1) Only I and II
2) Only II and III
3) Only I and III
4) I, II, III

23) Match the following

    List  A     List  B
1) Plasmodium  A) Isogamy
2) Trichonympha B) Sporulation
3) Monocystis  C) Conjugation
4) Vorticella D) Anisogamy
5) Amoeba E) Hologamy
1) 1  A, 2  B, 3  C, 4  D, 5 – E
2) 1  B, 2  C, 3  D, 4  E, 5 – A
3) 1  C, 2  D, 3  E, 4  A, 5 – B
4) 1  D, 2  E, 3  A, 4  C, 5  B

24) Which of the following locomotory structures are also useful for food collection
A. Pseudopodia 
B. Flagella
C. Myonemes 
D. Cilia
1) A & C
2) B & D
3) A & D
4) B & C

25) The most common method of asexual reproduction in protozoans which occurs during favourable contions is
1) Binary fission
2) Multiple fission
3) Budding
4) Gemmation

27) Match the following

    List-I       List-II
A. Hyperplasia 1) Increase of body size of snails
B. Hypertropy 2) Increase in number of cells of host
C. Gigantism 3) Change in behavior of hosts
D. Parasitic castration 4) Increase in size of cells of host
5) Deganeration of gonads of host

1) A 4, B 2, C 1, D 5 

2) A 2, B 4, C 1, D 5 
3) A 2, B 4, C 5, D 1 
4) A 2, B 4, C 3, D 5 
26) The intestinal parasite that produce antienzymes to neutralize the host’s digestive enzymes.
1) Ascaris
2) Wuchereria bancrofti
3) Taeniasolium
4) Plasmodium

28) Read the following and arrange them in a sequence pertaining to the appearance in life cycle of Plasmodium in human being
A) Cryptozoite
B) Metacryptozoite
C) Amoeboid stage
D) Signet ring stage 
E) Gametocyte
1) A-B-C-D-E
2) A-B-D-C-E
3) A-C-D-B-E
4) A-B-D-E-C

29) Match the following of Plasmodium and select the correct option Process Stages formed
A) Schizogony I) Gametes
B) Gametogony II) Gametocytes
C) Exflagellation III) Sporozoites
D) Maturation IV) Merozoites
E) Sporogony V) Microgametes
VI) Female gametes
The correct match is
1) A-IV, B-I, C-VI, D-V, E-III
2) A-IV, B-II, C-VI, D-V, E-III
3) A-III, B-II, C-V, D-VI, E-I
4) A-IV, B-I, C-V, D-VI, E-III
30) Infective stages of Ascaris are
1) embryonated eggs with 1st stage larvae
2) embryonated eggs with 2nd stage larvae
3) 3rd stage rhabditiform larvae
4) 4th stage rhabditiform larvae

31) Haemophilus influenza infects which parts in human body
1) Hepatic lobes of liver
2) Alveoli of lungs
3) Acini of salivary glands
4) Islets of langerhans of Pancreas

32) Match the following

    List-I      List-II
A. Opiods I.Effective sedative and pain killer
B. Morphine II.Nallamandu
C. Heroin III. Usually snorted
D.Cocaine IV. Smack
V. Ganjai mokka
1) A  II, B  III, C  I, D  V
2) A  II, B  I, C  IV, D  III
3) A  II, B  V, C  II, D  III
4) A  II, B  III, C  V, D  I

33) Arrange the following parts of cockroach in descending order based on the based on the number of segments
A. Anal style 
B. Maxillary palp
C. Head 
D. Labial palp
E. Abdomen
34) The following are various appenda ges of head
1) Mandibles 
2) Antennae
3) Labium
4) Maxillae
Arrange these in an ascending order of the their segmental origin
A) B-A-C-D
B) B-A-D-C
C) A-D-C-B
D) A-C-D-B

35) Which of the following statements are true for male cockroach
I) 10th tergum extends beyond the posterior end of the body
II) 7 sterna are visible
III) Gonapophyses arise from the 9th sternum
IV) Genital aperture is located 8th sternum
1) All except II
2) All except II and III
3) All except II and IV
4) All except IV
36) Match the following :
   List-I    List-II
A) Habitat  1) Average weather condition
B) Niche 2) Surface features of a region
C) Topography 3) Functional role of
an organism
D) Climate 4) Place in which an
organism lives
The correct match is
1) A-1, B -3, C- 2, D – 4
2) A-4, B -3, C- 2, D -1
3) A-4, B -1, C- 2, D – 3
4) A-3, B- 2, C- 1, D – 4
37) Match the following :
   List-I     List-II
A) Circadian rhythms  I) Specific day length which is essential
for the initiation of seasonal events
B) Circannular rhythms  II) Duration of the light hours in a day
C) Photoperiod  III) Biological rhythms that occur in a
time period of 24 house
D) Critical Photoperiod  IV) Biological rhythm repeat annually

The correct match is 

1) A III, B IV, C II, D I 
2) A I, B II, C III, D IV 
3) A II, B III, C IV, D I 
4) A IV, B I, C II, D III 
38) Type of interaction between sea anemone and clown fish is
1) Parasitism
2) Competition
3) Commensalism
4) Mutualism

39) Interaction of different organisms, in which one receives benefit without the cost of the others, is:
1) Parasitism
2) Amensalism
3) Symbiosis
4) Commensalism

40) Read the following statements
I) In both ‘parasitism’ and ‘Predation’ both the species are benefited
II) In amensalism one species is harmed whereas the other is unaffected
III) In both ‘parasitism’ and ‘predation’ both species are unaffected
IV) In ‘commensalism’ one species is benefited and the other is neither benefited not harmed
The correct statements are:
1) Only I, II
2) Only II, III
3) Only I, III
4) Only II, IV

41) Study the following statements
A) Decomposers are also known as saprotrophs
B) Food chains are always isolated
C) Food web a net work of different interconnected food chains
D) All producers are directly dependent on herbivores for their food
Find the correct statements
1) A,C
2) B,D
3) C,D
4) A,B

42) The water borne diseases are:
1) Dysentery & Malaria
2) Typhoid & Elephantiasis
3) Cholera & Tuberculosis
4) Jaundice & Cholera

43) Which of the following is explaining species is an ecological unit
1) Reproductively isolated from the individuals of other species
2) Sharing the same ecological niche
3) Showing similarity in the karyotype
4) Having similar structure and functional characteristics

44) Which of the following favours greater species diversity in the tropical regions
1) Constant environment promotes niche specialization
2) Species should have a relatively long evolutionary time
3) Sunlight and water are more abundant for the increase of productivity
4) Tropical latitudes relative disturbance for a long time
1) 2-3- 4
3) 3- 4
4) 1-2

45) Study the following statements.
I) The cells in each tissue layer in cnidarians are functionally interdependent
II) In hemichordates, coelom is formed from the endodermal pouches of archenteron
III) In annelids, the coelom is divided into paired compartments by intersegmental septa
IV) Diffusion of material from the gut to the body wall is slow and less efficient in flat worms
Which of the above are correct?
1) Only I and IV
2) Only I, II and IV
3) Only II and IV
4) Only III and IV
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