The epoch of human civilisation is
Pliocene
Holocene
Pleistocene
Palaeocene
Correct Answer :
B. Holocene
Related Questions
Peking man is known as
Homo sapiens
Pithecanthropus
Sinanthropus
None of these
We use the term hybrid breakdown when the
offspring of hybrids are inviable or sterile
a hybrid zygote is formed but it fails to develop
hybrid adults fail to produce functional gametes
sperms and ova of different species of animals are unable to fuse
Ontogeny recapitulates phylogeny is the statement relating to
morphology
physiology
taxonomy
embryology
The resemblance between the south American llama and the African camel indicates a common ancestry. This is
homological evidence for evolution
palaentological evidence for evolution
biogeographic evidence for evolution
none of these
The fossil formed from harder parts of the body infiltrated by minerals and turned into stony shapes is
moulds
coprolites
petrified
cast
Appearance of ancestral characters in the new born, such as tail, monstral face, gill slits, multiple mammale etc. are known as
homologous
analagous
ativistic
vestigeal
Amphibians appeared and became dominant in the
Mesozoic era
Coenozoic era
Palaeozoic era
None of these
The study of Galapagos Finches shows
adaptive radiation
adaptive convergence
use and disuse of organs
none of these
Darwin proposed his theory of natural selection on the basis of
Mutation
Environmental factors
Lama's theory
Chromosomal aberrations
Human beings living in different geographical areas and under different environmental conditions are kept under one species because
they show adaptive variations to their environment
they share the common karyotype
they can freely interbreed and share a common gene pool
their features are different yet they are similar essentially
The function affected by point mutation in p-globin in sickle cell anaemia is
protein folding
transcriptional control
nonsense mutation
none of these
A starfish with six arms, may be a case of
variation
evolution
autotomy
mutation
Which of the following gases were absent in free form when life originated on earth?
Oxygen
Hydrogen
Methane
Ammonia
Fire was first used for protection and cooking by
Java man
Neanderthal man
Peking man
Cromagnon man
Doubis in 1891 found the fossil of Java ape man. It is
Sinanthropus pekinensis
Homoerectus
Homo rhodesiensis
Homo spisaens
Which is a vestigeal organ of python
Nose
Scales
Teeth
Hindlimbs
The epoch of human civilisation is
Pliocene
Holocene
Pleistocene
Palaeocene
The earliest ancestor of horse from early Eocene period is
miobibbus
eohippus
merychippus
pliohippus
Which is not a vestigeal organ
Wisdom teeth
Fossa ovalis
Muscles of ear pinna
Ileum
The first life on earth came in water and evidences indicate that life originated in one of the following eras :
Paleozoic
Mesozoic
Cenozic
Proterzoic
A kind of mimicry which presumably works as a double insurance is
batesian mimicry
mullerian mimicry
warning colouration
concealing colouration
An animal is more likely to be preserved as a fossil if it contains large quantities of
cartilage and bone
proteins
inorganic materials
keratin materials
The idea of "Survival of fittest" was given by
Darwin
Herbert Spencer
Mai thus
Lovell
Co-worker of Darwin was
Bateson
Mendel
Wallace
Lamarck
The book "Voyage of the Beagle" is concerned with which one of the following ?
Lamarckism
Theory of natural selection
Bird flight mechanisms
Both and
Survival due to geographic isolation is best exemplified by mammalian fauna of
Oriental region
Ethiopian region
Australian region
Palaearctic region
A connecting link between Annelids and Arthropods is
Peripatus
Palaemon
Limulus
Heteronereis
The diploid number of chromosome in Chimpanzee, Gorilla and Orangutan is
2n = 44
2n = 46
2n = 48
none of these
Some of the important evidences of organic evolution are
occurrence of homologous and vestigeal organs
occurrence of analogous and vestigial organs
occurrence of homologous and analogous organs
occurrence of analogous oragans only
Role of isolation in evolution is
differentiation of species
maintenance of species
evolutionary divergence
extermination of species