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1.

In evolution of horse, two most important anatomical and morphological changes brought about areA. Limbs and tailB. Limbs and teethC. Teeth and tailD. Limbs and height

Answer» Correct Answer - B
2.

Which oen is a correct match (i) Coenozoic : 2 `-` 65 mya : Origin of vertebrates (ii) Palaezoic : 500 `-` 165 mya : Rise of egg laying mammals (iii) Mesozoic : 135 `-` 225 mya : Reptiles dominant (iv) Proterozoic : 350 `-` 500 mya : Trilobites dominantA. iB. iiC. iiiD. iv.

Answer» Correct Answer - C
3.

Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), both true but reason is not correct explanation (B), assertion true but reason is wrong ( C ), both are wrong (D). Assertion : Analogous organs are a result of divergent evolutionReason : Eye of Octopus and that of mammals depict divergent evolution.A. (A)B. (B)C. ( C )D. (D)

Answer» Correct Answer - D
4.

Which of the following structures is homologus to the wing of a bird?A. Flipper of whaleB. Dorsal fin of sharkC. Wing of a mothD. Hind limb of rabbit.

Answer» Correct Answer - A
5.

Development of similar habits in pouched and placental mammals found in similar habitals is calledA. divergent evolutionB. convergent evolutionC. adaptive radiationD. macroevolution

Answer» Correct Answer - B
6.

Pouched mammals attained diversity inA. AsiaB. South AmericaC. AustraliaD. South Africa

Answer» Correct Answer - C
7.

Which animal has become extinct recently ?A. DracoB. DinosaurC. MammothD. Pteridosperms

Answer» Correct Answer - C
8.

One of the following has rather recently become extinct.A. DinosaurB. Dodo fishC. MammothD. Pterodactyl

Answer» Correct Answer - B
9.

In horse , there has been an adaptartion of reduction of toes from five to one on each foot, which is long and covered by a hoof. This toe isA. FirstB. SecondC. FourthD. Third

Answer» Correct Answer - D
10.

Fossilisation occurs ,whereA. organisms are buried and preserved by natural processesB. animals are destroyed by environmentC. animals are destroyed by scavengersD. animals are buried by natural processes

Answer» Correct Answer - A
11.

A radioactive isotope has a half -life of 1.2 billion years . As measured by the presence of the isotope and its stable decay producy ,a rock originally contains 10g of the radioactive isotope and now contains 1.25 g . How many years old is the rock?A. 10000 yearsB. 12 billion yearsC. 3.6 billion yearsD. 0.3 billion years

Answer» Correct Answer - C
12.

The presence of gill slits in the embryos of all vertebrates supports the theory of `:`A. Organic evolutionB. BiogenesisC. MetamorphosisD. Recapitulation

Answer» Correct Answer - D
13.

All organisms share the same genetic code. This supports that `:`A. The evolution is occurring nowB. The convergent evolution has occurredC. The evolution occurs graduallyD. All the organisms have descended from a common ancestor

Answer» Correct Answer - D
14.

In Africa ,there is a species of bird called the yellow -throated longclaw .It looks almost exactly like the meadowlark found in north America , but they are not closely related .This is an example ofA. UniformitarianismB. Artificial selectionC. GradualismD. Convergent evolution

Answer» Correct Answer - D
15.

Identify the animal in the given figure. It is a connecting link between A. Euglenar ,animals and plantsB. Virus, non -livings and livingsC. Euglena, non -livings and livingsD. Virus, animals and plants

Answer» Correct Answer - A
16.

Connecting link between chordates and non-chordates isA. PeripatusB. BalanoglossusC. SphenodonD. Tachyglosscus

Answer» Correct Answer - B
17.

A connecting/missing link between reptiles and birds isA. ArchaeopterysB. PlatypusC. Java Ape manD. Whale.

Answer» Correct Answer - A
18.

Peripatus is a connecting link between :A. Ctenophora and PbtyhelminthesB. Mollusa and EchinodermataC. Annelida and ArthropodaD. Coelenterata and Porifera

Answer» Correct Answer - C
19.

Connecting link between annelida and mollusca isA. PeripatusB. LepidosirenC. NeopilinaD. Protopterus

Answer» Correct Answer - C
20.

Arrchaeopteryx is considered missing link becauseA. it has pneumatic bonesB. it has feathersC. it is a fossil organismD. it has a long tail

Answer» Correct Answer - C
21.

Hand of man, wing of bat and flipper of seal represent `:`A. Analogous organsB. Vestigial organsC. Homologous organsD. Evolutionary organs.

Answer» Correct Answer - C
22.

Which one of the following are analogous structuresA. Wings of bat and wings of pigeonB. Gills of prawn and lungs of manC. Thorns of Bougainvillea and tendrils of CucurbitaD. Flippers of dolphin and legs of horse

Answer» Correct Answer - A
23.

Analogous structures are a result ofA. convergent evolutionB. shared ancestryC. stabilising selectionD. divergeilt evolution

Answer» Correct Answer - A
24.

Which one of the following are analogous structuresA. Gills of Prawn and lungs of ManB. Thorns of Bougainvillea and tendrils of CucurbitaC. Flippers of Dolphin and legs of HorseD. Wings of Bat and wings of Pigeon.

Answer» Correct Answer - A
25.

One of the following period witnessed the maximum diversity of reptilesA. CretaceousB. JurassicC. PleistoceneD. Triassic.

Answer» Correct Answer - A
26.

The wings of a bird and the wings of an insect areA. Homologous structures and represent divergent evolutionB. Analogous structures and represent convergent evolutionC. Phylogenetic structures and represent divergent evolutionD. Homologous structures and represent convergent evolution.

Answer» Correct Answer - B
27.

Analogous structures areA. anatomically different, but performing similar functionsB. anatomically similar, but performing different functiousC. anatomically similar and functioning similarlyD. anatomically different and fonciioning differently

Answer» Correct Answer - A
28.

How many years are considered in one minute in Geological clockA. 52,000 yearsB. 3,250,000 yearsC. 187,500,000 yearsD. 190,000 years.

Answer» Correct Answer - B
29.

Match the following with references to geological time scale A. (a=iii), (b-c), (c-i), (d-iv), (e-ii)B. (a-ii), (b-v), (c-i), (e-iii)C. (a-iii), (b-iv), (c-ii), (d-v), (e-i),D. (a-iii), (b-iv), (c-i), (d-v), (e-ii)

Answer» Correct Answer - D
30.

Wings of butterfly and wings of birds are examples ofA. Vestigial organsB. Analogous organsC. Homologous organsD. Atavistic organs.

Answer» Correct Answer - B
31.

Wings of birds and wings of flies perform similar functions so they are examples ofA. homologous organB. analogous organC. evolutionary organD. paralogous organ

Answer» Correct Answer - B
32.

Wings of birds and forelimbs of horse are ________ organsA. VestigalB. AnalogousC. HomologousD. None of the above.

Answer» Correct Answer - C
33.

Forelimbs of humans and wings of birds areA. Analogous organsB. Homologous organsC. Parallel organsD. Vestigial organs.

Answer» Correct Answer - B
34.

Which is correct?A. `99%` of existed species are extinctB. `65%` of existed species are extinctC. `40%` of existed species are extinctD. `30%` of existed species are extinct.

Answer» Correct Answer - A
35.

Dinosaurs were present during theA. Palaeozoic eraB. Coenozoic eraC. Mesozoic eraD. Precambrian era.

Answer» Correct Answer - C
36.

Which of the following is the relatively most accurate method for dating of fossils ?A. Radiocarbon methodB. Potassium- argon methodC. Electron spin - resonance methodD. Uranium - lead method.

Answer» Correct Answer - C
37.

The best way of direct dating fossils of recent origin is byA. radio -carbon methodB. uranium- lead methodC. potassium -argon methodD. Both (a) and ( c)

Answer» Correct Answer - D
38.

An aquatic living fossil, with ancient origin and many primitive characters which respires through book gills, isA. LimulusB. CancerC. LuciferD. Daphnia

Answer» Correct Answer - A
39.

In absolute dating, age of the rock/fossil is determined byA. depth of rockB. exposure of rockC. decay of a radioisotopeD. rate of surface erosion of rock

Answer» Correct Answer - C
40.

Which of the following is a vestigial organA. Wisdom toothB. clawsC. Scalp hairD. All of these

Answer» Correct Answer - A
41.

In human beings vestigial organs areA. Wisdom tooth, coccyx, nail, eye lid and vermiform appendixB. Wisdom tooth, coccys, vermiform appendix, pancreas and elbow jointC. Wisdom tooth, coccys, vermiform appendix, nictitating membrane and auricular musclesD. Coccys, wisdom tooth, nail, auticulur muscles.

Answer» Correct Answer - C
42.

A fossil is aA. laboratory preserved animalB. dead animal of the pastC. stuffed animalD.

Answer» Correct Answer - C
43.

Biogenetic laws/recapitulation theory was proposed byA. WallaceB. LamarckC. HaeckelD. Mendel

Answer» Correct Answer - C
44.

Which one of the following is the vestigial organ in human beingsA. Nictitating membraneB. SpleenC. FemurD. Tibia

Answer» Correct Answer - A
45.

A male human having mammary glands is a case exhibitingA. retrogressive evolutionB. mutationC. atavismD. metamorphosis

Answer» Correct Answer - C
46.

A vestigial organ in human isA. Ear pinnaB. Nictitating membraneC. Mammary glands in malesD. Knee bone.

Answer» Correct Answer - B
47.

Blood Precipitation test are used inA. Blood groupingB. Antigen-antibody reactionC. Animal relationsD. Immunity

Answer» Correct Answer - C
48.

Blood precipitation test was proposed byA. WallaceB. NuttalC. BatesonD. Needham

Answer» Correct Answer - B
49.

The epoch of representing first man -like apes in geological period isA. PlioceneB. OligoceneC. MioceneD. Pleistocene

Answer» Correct Answer - C
50.

Monkeys and some lower groups have certain blood groups which areA. Identical to those of manB. Identical to those of anthropod apesC. Somewhat similar to white personsD. Not identical to those of man.

Answer» Correct Answer - A