During which geological period of evolution did the greatest diversification of life occurred on the earth?

• Permian

• Jurassic

• Cambrian

• Ordovician

About how long ago was the earth formed

• 3 billion years ago

• 10 billion years ago

• 4.6 billion years ago

• 20 billion years ago

Total number of bones in the hindlimb of a man is

• 14

• 21

• 24

• 30

The diversity in the type of beaks of finches adapted to different feeding habits on the Galapagos islands, as observed by Darwin, provides evidence for

• Origin of species by natural selection

• Intraspecific Variations

• Intraspecific competition

• Interspecific competition

Age of fishes is also known as

• Permian Era

• Silurian Era

• Devonian Era

• Ordovician Era

Human ancestors who left cave paintings were

• Neanderthal man

• Cro- magnon man

• Java ape man

• Peking man

Pneumatic bones are expected to be found in

• house lizard

• flying fish

• pigeon

• tadpole of frog

Which of the following is not a vestigial structure in Homo sapiens ?

• Third molar

• Epiglottis

• Plica semilunaris

• Pyrimidalis muscle

The presence of diversity at the junction of territories to two different habitats is known as

• bottleneck effect

• edge effect

• junction effect

• Pasteur effect

Which of the following provides most evident proof of evolution?

• Fossils

• Morphology

• Embryo

• Vestigial organs