Survival due to geographic isolation is best exemplified by mammalian fauna of
Oriental region
Ethiopian region
Australian region
Palaearctic region
Correct Answer :
A. Oriental region
Related Questions
The book "Origin of Species" was written by Charles Darwin in
1859
1885
1883
1897
The study of Galapagos Finches shows
adaptive radiation
adaptive convergence
use and disuse of organs
none of these
Which is a vestigeal organ of python
Nose
Scales
Teeth
Hindlimbs
Doubis in 1891 found the fossil of Java ape man. It is
Sinanthropus pekinensis
Homoerectus
Homo rhodesiensis
Homo spisaens
Which animals dominated in Paleozoic era ?
Fishes
Amphibians
Reptiles
Birds
Along with reduction in the number of toes in the modern horse, the other most significant evolutionary change is
increase in the size of eyes
increase in the size of brain
straightening of back
change in dentition from browsing to grazing
Darwin proposed his theory of natural selection on the basis of
Mutation
Environmental factors
Lama's theory
Chromosomal aberrations
Fossilisation occurs where
animals are destroyed by environment
animals are destroyed by scavangers
animals are burried by natural " processes
organisms are burried and preserved by natural processes
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
Which were dominant during Mesozoic era
Pisces
Birds
Ruling mammals
Ruling reptiles
The first fossil man was
Australopithecus
Homo erectus
Sinanthropus
Ginganlo pithecus
Which is not a vestigeal organ
Wisdom teeth
Fossa ovalis
Muscles of ear pinna
Ileum
The earliest ancestor of horse from early Eocene period is
miobibbus
eohippus
merychippus
pliohippus
Ontogeny recapitulates phylogeny is the statement relating to
morphology
physiology
taxonomy
embryology
Fire was first used for protection and cooking by
Java man
Neanderthal man
Peking man
Cromagnon man
The first mammal arose
after the extinction of dinosaurs
before the origin of dinosaurs
along with dinosaurs
from the dinosaurs
Survival due to geographic isolation is best exemplified by mammalian fauna of
Oriental region
Ethiopian region
Australian region
Palaearctic region
The fossil formed from harder parts of the body infiltrated by minerals and turned into stony shapes is
moulds
coprolites
petrified
cast
The first life on earth came in water and evidences indicate that life originated in one of the following eras :
Paleozoic
Mesozoic
Cenozic
Proterzoic
The concept of use and disuse of organs was given by
Darwin
Wallace
Mendel
Lamarck
Species were regarded as unchangeable by
Lamarck
Morgan
Charles Darwin
Many biologists of 19th century
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
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
Pangenesis theory was given by
Charles Darwin
Lamarck
Wsismann
Becker
A connecting link between Annelids and Arthropods is
Peripatus
Palaemon
Limulus
Heteronereis
Peking man is known as
Homo sapiens
Pithecanthropus
Sinanthropus
None of these
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
Which of these does not play a role in evolution ?
Mutation
Polyploidy
Natural selection
Acquired characters
Geological evidence of most primitive mammals is found in
Centred Africa
China
India
Australia
An example of analogy is
wings of a bird and butterfly
wings of pigeon and bat
limbs of horse and man
paddles of dolphin and fins of a fish