Origin and Evolution of Life One Mark Online Test

Origin and Evolution of Life One Mark Online Test (10th Standard Science)

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Biogenetic law states that ______________

A.Ontogeny and phylogeny go together B.Ontogeny recapitulates phylogeny C.Phylogeny recapitulates ontogeny D.There is no relationship between phylogeny and ontogeny

The 'use and disuse theory' was proposed by ______________ .

A.Charles Darwin B.Ernst Haeckel C.Jean Baptiste Lamarck D.Gregor Mendel

Paleontologists deal with

A.Embryological evidences B.Fossil evidences C.Vestigial organ evidences D.All the above

The best way of direct dating fossils of recent origin is by

A.Radio-carbon method B.Uranium lead method C.Potassium-argon method D.Both (a) and (c)

The term Ethnobotany was coined by

A.Khorana B.J.W. Harsbberger C.Ronald Ross D.Hugo de Vries

The characters developed by animals during their lifetime in response to environmental changes are called

A.Acquired characters B.Inherited characters C.Vestigial characters D.Dominant characters

Degenerated and non-functional organs found in an organism are called

A.Homologous organs B.Analogous organs C.Vestigial organs D.Connecting links

The forelimbs of a bat and a human are examples of

A.Analogous organs B.Homologous organs C.Vestigial organs D.Atavism

The wing of a bat and the wing of an insect are examples of

A.Homologous organs B.Analogous organs C.Vestigial organs D.Fossils

Q10

The theory of natural selection for evolution was proposed by

A.Jean Baptiste Lamarck B.Charles Darwin C.Ernst Haeckel D.J.W. Harsbberger

Q11

The reappearance of ancestral characters such as a rudimentary tail in a human being is called

A.Atavism B.Adaptation C.Speciation D.Mutation

Q12

The remains or impressions of ancient organisms preserved by natural processes are called

A.Fossils B.Vestiges C.Embryos D.Analogues

Q13

The organism considered to be the connecting link between reptiles and birds is

A.Archaeopteryx B.Peripatus C.Dodo D.Kiwi

Q14

The scientific study of the traditional use of plants by particular groups of people is called

A.Palaeontology B.Ethnobotany C.Astrobiology D.Embryology

Q15

The science that looks for the presence of extra terrestrial life in the universe is

A.Ethnobotany B.Palaeontology C.Astrobiology D.Taxonomy

Q16

According to Darwin, which of the following allows only the fittest to survive?

A.Use and disuse of organs B.Inheritance of acquired characters C.Struggle for existence D.Internal vital force

Q17

Which of the following is NOT a principle of Lamarckism?

A.Internal vital force B.Use and disuse of organs C.Inheritance of acquired characters D.Survival of the fittest

Q18

The caudal vertebrae and the vermiform appendix in human beings are examples of

A.Vestigial organs B.Analogous organs C.Connecting links D.Fossils

Q19

Similar traits in different organisms are explained by their being inherited from

A.different ancestors B.a common ancestor C.the environment alone D.acquired characters

Q20

Which dating method would suit a fossil believed to be several hundred million years old?

A.Radio-carbon method B.Uranium lead method C.Ethnobotanical method D.Embryological method

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About this Origin and Evolution of Life test

This free online practice test covers Origin and Evolution of Life from the 10th Standard Science (Samacheer Kalvi) syllabus. Choose the number of questions and an optional time limit, then answer and submit — everything is checked in your browser, with the correct answers and a worked explanation shown at the end. For the full solutions to every question in this set, see the solved MCQs page.

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