The concept of use and disuse of organs was given by
Darwin
Wallace
Mendel
Lamarck
Correct Answer :
D. Lamarck
Related Questions
Which is a vestigeal organ of python
Nose
Scales
Teeth
Hindlimbs
The age of a fossil may be determined most accurately
by comparing it to living similar forms
by radioactive dating
by rate of erosion of the strata
from the depth of strata at which it is found
A connecting link between Annelids and Arthropods is
Peripatus
Palaemon
Limulus
Heteronereis
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 recent ancestors of modem man were
Java Ape and Peking man
Peking man and Rhodesian man
Cromagnon man and Rhodesian man
Cromagnon man and Neanderthal man
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
Geological evidence of most primitive mammals is found in
Centred Africa
China
India
Australia
The book "Origin of Species" was written by Charles Darwin in
1859
1885
1883
1897
Which is not a vestigeal organ
Wisdom teeth
Fossa ovalis
Muscles of ear pinna
Ileum
The fossil formed from harder parts of the body infiltrated by minerals and turned into stony shapes is
moulds
coprolites
petrified
cast
Fossil Archaeopteryx was discovered and preserved as
a petrified specimen
a mineralised specimen
a mould
embedded in amber
Which of these does not play a role in evolution ?
Mutation
Polyploidy
Natural selection
Acquired characters
A starfish with six arms, may be a case of
variation
evolution
autotomy
mutation
The study of Galapagos Finches shows
adaptive radiation
adaptive convergence
use and disuse of organs
none of these
Which were dominant during Mesozoic era
Pisces
Birds
Ruling mammals
Ruling reptiles
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
A fossil is a
laboratory preserved animal
dead animal of the past
organic relic of the past
stuffed animal
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
Connecting link between nonchordata and chordata is
Peripatus
Archaeopteryx
Tachyglossus
Balanoglossus
The book "Voyage of the Beagle" is concerned with which one of the following ?
Lamarckism
Theory of natural selection
Bird flight mechanisms
Both and
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
In forming the theory of evolution by Natural Selection, Charles Darwin was greatly influenced by
environmental factors
mutations
malthu's ideas on population control
all of these
Survival due to geographic isolation is best exemplified by mammalian fauna of
Oriental region
Ethiopian region
Australian region
Palaearctic region
The idea of "Survival of fittest" was given by
Darwin
Herbert Spencer
Mai thus
Lovell
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
Darwin proposed his theory of natural selection on the basis of
Mutation
Environmental factors
Lama's theory
Chromosomal aberrations
The idea of spontaneous generation is essentially correct in regard to
origin of life
evolution
mutations
embryology
Peking man is known as
Homo sapiens
Pithecanthropus
Sinanthropus
None of these
The first mammal arose
after the extinction of dinosaurs
before the origin of dinosaurs
along with dinosaurs
from the dinosaurs
The earliest ancestor of horse from early Eocene period is
miobibbus
eohippus
merychippus
pliohippus