Tag: biology

Questions Related to biology

In which era did the Himalayas and Alps emerge

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. Beginning of coenozoic

  2. Middle mesozoic

  3. Early palaeozoic

  4. Late palaeozoic.

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Correct Option: A

Oldest fossils of land animals consist of

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. Amphibians

  2. Centipedes

  3. Primitive spider

  4. Both B and C.

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Correct Option: D

Amber is

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. Fossilised peat

  2. Brown lignite

  3. Brown fossilised resin

  4. Brown coal.

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Correct Option: C

Carbon dating was invented by

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. Kamen et al

  2. Libby

  3. Ruben and Kamen

  4. Calvin.

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Correct Option: B

Fossils of oldest land animals date back to

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. 300 million years

  2. 350 million years

  3. 395 million years

  4. 440 million years.

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Correct Option: D

Study of rocks, their mineral composition and origin is

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. Tectonics

  2. Seismology

  3. Mineralogy

  4. Petrology.

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Correct Option: D

Determining the age of geological structures like fossils and rocks is called

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. Archaeology

  2. Speleology

  3. Dating

  4. Stratigraphy.

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Correct Option: C

Assertion : Ginkgo biloba is a living fossil.

Reason : Organism which have persisted and remain unchanged for the past

 several million years while their relative disappeared.

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true

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Correct Option: A
Explanation:

Ginkgo biloba is a living fossil because its ancestors are unchanged for the  last many hundred years, while its relatives disappeared.

Which of the following is the relatively most accurate method for dating of fossils -

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. Electron-spin resonance method

  2. Uranium-lead method

  3. Potassiumargon method

  4. Radio-carbon method

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Correct Option: A
Explanation:

From the given methods, the relatively most accurate method for dating of fossils is electron-spin resonance method. This method is based on the principle of measuring the number of charges occupied by the deep traps crystal band gap.

Thus, the correct answer is 'Electron-spin resonance method.'

The age of rock is calculated on the basis of _____________.

biology origin and evolution of life fossilization geological time scale, extinctions and fossils concepts of evolution

  1. Types of fossils present

  2. Number of strata present

  3. Amount of uranium present

  4. Amount of lead present

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Correct Option: A