Connecting link between nonchordata and chordata is
Peripatus
Archaeopteryx
Tachyglossus
Balanoglossus
Correct Answer :
D. Balanoglossus
Related Questions
Fossil Archaeopteryx was discovered and preserved as
a petrified specimen
a mineralised specimen
a mould
embedded in amber
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
Survival due to geographic isolation is best exemplified by mammalian fauna of
Oriental region
Ethiopian region
Australian region
Palaearctic region
The epoch of human civilisation is
Pliocene
Holocene
Pleistocene
Palaeocene
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
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 concept of use and disuse of organs was given by
Darwin
Wallace
Mendel
Lamarck
Fire was first used for protection and cooking by
Java man
Neanderthal man
Peking man
Cromagnon man
Amphibians appeared and became dominant in the
Mesozoic era
Coenozoic era
Palaeozoic era
None of these
A starfish with six arms, may be a case of
variation
evolution
autotomy
mutation
The book "Origin of Species" was written by Charles Darwin in
1859
1885
1883
1897
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
Peking man is known as
Homo sapiens
Pithecanthropus
Sinanthropus
None of these
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
Species were regarded as unchangeable by
Lamarck
Morgan
Charles Darwin
Many biologists of 19th century
The idea of "Survival of fittest" was given by
Darwin
Herbert Spencer
Mai thus
Lovell
Darwin proposed his theory of natural selection on the basis of
Mutation
Environmental factors
Lama's theory
Chromosomal aberrations
A connecting link between Annelids and Arthropods is
Peripatus
Palaemon
Limulus
Heteronereis
Ontogeny recapitulates phylogeny is the statement relating to
morphology
physiology
taxonomy
embryology
The fossil formed from harder parts of the body infiltrated by minerals and turned into stony shapes is
moulds
coprolites
petrified
cast
Which were dominant during Mesozoic era
Pisces
Birds
Ruling mammals
Ruling reptiles
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
Role of isolation in evolution is
differentiation of species
maintenance of species
evolutionary divergence
extermination of species
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
The study of Galapagos Finches shows
adaptive radiation
adaptive convergence
use and disuse of organs
none of these
The idea of spontaneous generation is essentially correct in regard to
origin of life
evolution
mutations
embryology
The function affected by point mutation in p-globin in sickle cell anaemia is
protein folding
transcriptional control
nonsense mutation
none of these
The first mammal arose
after the extinction of dinosaurs
before the origin of dinosaurs
along with dinosaurs
from the dinosaurs