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Evolution

Question
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Which of the following provides most evident proof of evolution?

  • Fossils

  • Morphology

  • Embryo

  • Vestigial organs

Solution

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.

Some More Questions From Evolution Chapter

What were the units of life according to the early Greek thinkers ?

Mention the type of nutrition in the cells originated first during the origin of life.

Which group of organisms were responsible for appearance of free oxygen in the atmosphere of the primitive earth ?

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

Name the different eras of geologic time scale.

What is single step large mutation?

Consider a thorn in Bougainvillea and a tendril in cucurbita. Are these two organs homologous or analogous ? Give reason.

Give two examples that represent adaptive radiation.

Which theory attempts to explain to us the origin of universe?

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