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4

The fossil formed from harder parts of the body infiltrated by minerals and turned into stony shapes is

A. moulds

B. coprolites

C. petrified

D. cast

Correct Answer :

C. petrified


Related Questions

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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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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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4

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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4

The age of a fossil may be determined most accurately

A. by comparing it to living similar forms

B. by radioactive dating

C. by rate of erosion of the strata

D. from the depth of strata at which it is found

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4

In forming the theory of evolution by Natural Selection, Charles Darwin was greatly influenced by

A. environmental factors

B. mutations

C. malthu's ideas on population control

D. all of these

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Ontogeny recapitulates phylogeny is the statement relating to

A. morphology

B. physiology

C. taxonomy

D. embryology

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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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A connecting link between Annelids and Arthropods is

A. Peripatus

B. Palaemon

C. Limulus

D. Heteronereis

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Appearance of ancestral characters in the new born, such as tail, monstral face, gill slits, multiple mammale etc. are known as

A. homologous

B. analagous

C. ativistic

D. vestigeal

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Darwin proposed his theory of natural selection on the basis of

A. Mutation

B. Environmental factors

C. Lama's theory

D. Chromosomal aberrations

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4

Which of the following gases were absent in free form when life originated on earth?

A. Oxygen

B. Hydrogen

C. Methane

D. Ammonia

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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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Which were dominant during Mesozoic era

A. Pisces

B. Birds

C. Ruling mammals

D. Ruling reptiles

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Which animals dominated in Paleozoic era ?

A. Fishes

B. Amphibians

C. Reptiles

D. Birds

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4

Co-worker of Darwin was

A. Bateson

B. Mendel

C. Wallace

D. Lamarck

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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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The book "Voyage of the Beagle" is concerned with which one of the following ?

A. Lamarckism

B. Theory of natural selection

C. Bird flight mechanisms

D. Both and

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4

The recent ancestors of modem man were

A. Java Ape and Peking man

B. Peking man and Rhodesian man

C. Cromagnon man and Rhodesian man

D. Cromagnon man and Neanderthal man

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4

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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4

A starfish with six arms, may be a case of

A. variation

B. evolution

C. autotomy

D. mutation

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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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4

The study of Galapagos Finches shows

A. adaptive radiation

B. adaptive convergence

C. use and disuse of organs

D. none of these

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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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4

Connecting link between nonchordata and chordata is

A. Peripatus

B. Archaeopteryx

C. Tachyglossus

D. Balanoglossus

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4

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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4

The epoch of human civilisation is

A. Pliocene

B. Holocene

C. Pleistocene

D. Palaeocene

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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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Fossil Archaeopteryx was discovered and preserved as

A. a petrified specimen

B. a mineralised specimen

C. a mould

D. embedded in amber

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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

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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