Which of the following provides most evident proof of evolution?
Fossils
Morphology
Embryo
Vestigial organs
A.
Fossils
Fossils provide the direct evidences of organic evolution. It may be entire organisms buried in sediment or snow or a small part or impressions of ancient organisms on leaf or stem.
Morphology is the study of form and structure in organisms. Study of homologous and analogous organs provide evidence of evolution.
Embryology provides evidence of organic evolution which is based on basic laws of principles of embryonic development.
Vestigial organs are degenerate, non- functional and rudimentary organs. These provide evidences for organic evolution.
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
Human ancestors who left cave paintings were
Neanderthal man
Cro- magnon man
Java ape man
Peking man
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
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 is not a vestigial structure in Homo sapiens ?
Third molar
Epiglottis
Plica semilunaris
Pyrimidalis muscle
During which geological period of evolution did the greatest diversification of life occurred on the earth?
Permian
Jurassic
Cambrian
Ordovician
