Over production
Struggle for existence and variation
Survival of the fittest
All of the above
Spencer
Darwin
Wallace
Huxley
Before 20,000 years
Before 2,00,000 years
Before 20,00,000 years
Before 2,000,000,000 years
Blue-green algae
Fungi
Amoeba
Euglena
Newton
Einstein
Charles Darwin
Lamarck
Huxley
Darwin
Lamarck
Hugo de Vries
Octopus, Dolphin, Shark
Pangolin, Tortoise, Hawk
Salamander, Python, Kangaroo
Frog, Crab, Prawn
Mutation
Achieved quality
Vaginal birth
Natural selection
Use and disuse of organs
Adaptation to living in burrows
Natural selection
Inheritance of acquired characters
Cheetah
Leopard
Tiger
Lion
Java man
Cro-magnon man
Neanderthan man
Peking man
Most ancient bird of Jurassic age
Reptile of Jurassic period
Reptile of Triassic period
Reptile of both Triassic and Jurassic period
Amphibia and Aves
Reptilia and Aves
Reptilia and Mammalia
Aves and Mammalia
Dog
Horse
Camel
Elephant
Cenozoic reptiles
Mesozoic birds
Paleozoic amphibians
Mesozoic reptiles
Paleozoic era
Cenozoic era
Mesozoic era
Pleistocene era
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