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Which is a vestigeal organ of python

A. Nose

B. Scales

C. Teeth

D. Hindlimbs

Correct Answer :

D. Hindlimbs


Related Questions

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A starfish with six arms, may be a case of

A. variation

B. evolution

C. autotomy

D. mutation

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Which of these does not play a role in evolution ?

A. Mutation

B. Polyploidy

C. Natural selection

D. Acquired characters

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Fire was first used for protection and cooking by

A. Java man

B. Neanderthal man

C. Peking man

D. Cromagnon man

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Which were dominant during Mesozoic era

A. Pisces

B. Birds

C. Ruling mammals

D. Ruling reptiles

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Fossilisation occurs where

A. animals are destroyed by environment

B. animals are destroyed by scavangers

C. animals are burried by natural " processes

D. organisms are burried and preserved by natural processes

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Geological evidence of most primitive mammals is found in

A. Centred Africa

B. China

C. India

D. Australia

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Co-worker of Darwin was

A. Bateson

B. Mendel

C. Wallace

D. Lamarck

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We use the term hybrid breakdown when the

A. offspring of hybrids are inviable or sterile

B. a hybrid zygote is formed but it fails to develop

C. hybrid adults fail to produce functional gametes

D. sperms and ova of different species of animals are unable to fuse

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The diploid number of chromosome in Chimpanzee, Gorilla and Orangutan is

A. 2n = 44

B. 2n = 46

C. 2n = 48

D. none of these

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The earliest ancestor of horse from early Eocene period is

A. miobibbus

B. eohippus

C. merychippus

D. pliohippus

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The first fossil man was

A. Australopithecus

B. Homo erectus

C. Sinanthropus

D. Ginganlo pithecus

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Some of the important evidences of organic evolution are

A. occurrence of homologous and vestigeal organs

B. occurrence of analogous and vestigial organs

C. occurrence of homologous and analogous organs

D. occurrence of analogous oragans only

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The resemblance between the south American llama and the African camel indicates a common ancestry. This is

A. homological evidence for evolution

B. palaentological evidence for evolution

C. biogeographic evidence for evolution

D. none of these

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The function affected by point mutation in p-globin in sickle cell anaemia is

A. protein folding

B. transcriptional control

C. nonsense mutation

D. none of these

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Which is not a vestigeal organ

A. Wisdom teeth

B. Fossa ovalis

C. Muscles of ear pinna

D. Ileum

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The concept of use and disuse of organs was given by

A. Darwin

B. Wallace

C. Mendel

D. Lamarck

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The book "Origin of Species" was written by Charles Darwin in

A. 1859

B. 1885

C. 1883

D. 1897

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Pangenesis theory was given by

A. Charles Darwin

B. Lamarck

C. Wsismann

D. Becker

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Amphibians appeared and became dominant in the

A. Mesozoic era

B. Coenozoic era

C. Palaeozoic era

D. None of these

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The first life on earth came in water and evidences indicate that life originated in one of the following eras :

A. Paleozoic

B. Mesozoic

C. Cenozic

D. Proterzoic

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Role of isolation in evolution is

A. differentiation of species

B. maintenance of species

C. evolutionary divergence

D. extermination of species

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Connecting link between nonchordata and chordata is

A. Peripatus

B. Archaeopteryx

C. Tachyglossus

D. Balanoglossus

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A kind of mimicry which presumably works as a double insurance is

A. batesian mimicry

B. mullerian mimicry

C. warning colouration

D. concealing colouration

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An animal is more likely to be preserved as a fossil if it contains large quantities of

A. cartilage and bone

B. proteins

C. inorganic materials

D. keratin materials

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The epoch of human civilisation is

A. Pliocene

B. Holocene

C. Pleistocene

D. Palaeocene

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A fossil is a

A. laboratory preserved animal

B. dead animal of the past

C. organic relic of the past

D. stuffed animal

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The first mammal arose

A. after the extinction of dinosaurs

B. before the origin of dinosaurs

C. along with dinosaurs

D. from the dinosaurs

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Along with reduction in the number of toes in the modern horse, the other most significant evolutionary change is

A. increase in the size of eyes

B. increase in the size of brain

C. straightening of back

D. change in dentition from browsing to grazing

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Peking man is known as

A. Homo sapiens

B. Pithecanthropus

C. Sinanthropus

D. None of these

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An example of analogy is

A. wings of a bird and butterfly

B. wings of pigeon and bat

C. limbs of horse and man

D. paddles of dolphin and fins of a fish