Oxygen
Hydrogen
Methane
Ammonia
A. Oxygen
adaptive radiation
adaptive convergence
use and disuse of organs
none of these
morphology
physiology
taxonomy
embryology
Peripatus
Archaeopteryx
Tachyglossus
Balanoglossus
Darwin
Herbert Spencer
Mai thus
Lovell
occurrence of homologous and vestigeal organs
occurrence of analogous and vestigial organs
occurrence of homologous and analogous organs
occurrence of analogous oragans only
origin of life
evolution
mutations
embryology
variation
evolution
autotomy
mutation
Bateson
Mendel
Wallace
Lamarck
Java Ape and Peking man
Peking man and Rhodesian man
Cromagnon man and Rhodesian man
Cromagnon man and Neanderthal man
Homo sapiens
Pithecanthropus
Sinanthropus
None of these
environmental factors
mutations
malthu's ideas on population control
all of these
Nose
Scales
Teeth
Hindlimbs
differentiation of species
maintenance of species
evolutionary divergence
extermination of species
Java man
Neanderthal man
Peking man
Cromagnon man
Australopithecus
Homo erectus
Sinanthropus
Ginganlo pithecus
Pliocene
Holocene
Pleistocene
Palaeocene
moulds
coprolites
petrified
cast
laboratory preserved animal
dead animal of the past
organic relic of the past
stuffed animal
Mesozoic era
Coenozoic era
Palaeozoic era
None of these
Peripatus
Palaemon
Limulus
Heteronereis
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
Wallace
Mendel
Lamarck
Oriental region
Ethiopian region
Australian region
Palaearctic region
miobibbus
eohippus
merychippus
pliohippus
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 petrified specimen
a mineralised specimen
a mould
embedded in amber
homological evidence for evolution
palaentological evidence for evolution
biogeographic evidence for evolution
none of these
Paleozoic
Mesozoic
Cenozic
Proterzoic
Lamarckism
Theory of natural selection
Bird flight mechanisms
Both and
Wisdom teeth
Fossa ovalis
Muscles of ear pinna
Ileum