Tag: universe and organic evolution

Questions Related to universe and organic evolution

What is thickness of 'lithosphere' at ocean region?

origin of universe universe and organic evolution biology

  1. 10-20 km

  2. 10-12 km

  3. 12-18 km

  4. 10-18 km

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Correct Option: B

Choose the correct answers from the alternatives given .
All living organisms on the earth constitute

origin of universe universe and organic evolution biology

  1. biome

  2. biosphere

  3. population

  4. community

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Correct Option: B
Explanation:

The biosphere is the biological component of earth systems, which include the lithosphere, hydrosphere, atmosphere. The biosphere includes all living organisms on earth. together with the dead organic matter produced by them.

Who first gave concept of biosphere?

origin of universe universe and organic evolution biology

  1. Jabir bin ayan

  2. Augustine

  3. Edward Suess

  4. Edwin

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Correct Option: C

How much percent earth's volume lithosphere have?

origin of universe universe and organic evolution biology

  1. 3%

  2. 1%

  3. 2%

  4. 6%

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Correct Option: B

The Dehang Debang Biosphere Reserve is located in which among the following states?

origin of universe universe and organic evolution biology

  1. Manipur

  2. Assam

  3. Sikkim

  4. Arunachal Pradesh

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Correct Option: D

Nokrek Biosphere reserve is located in which of the following states?

origin of universe universe and organic evolution biology

  1. Assam

  2. Meghalaya

  3. Manipur

  4. Tripura

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Correct Option: B

Land mass occupies about

origin of universe universe and organic evolution biology

  1. 14 million hectares

  2. 140 million hectares

  3. 1400 million hectares

  4. 14000 million hectares

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Correct Option: D
Explanation:

Seen from space, the majority of the Earth's surface is covered by oceans – that makes up 71% of the surface of the Earth, with the remaining 29% for land.
So the correct option is '14000 million hectares'.

According to the neo-Darwinian theory, which of the following is responsible for the origin of new species?

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. Mutations

  2. Useful variations

  3. Mutations together with natural selection

  4. Hybridization

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Correct Option: C
Explanation:

According to the Neo-Darwinian theory, mutations together with natural selection results in origin of new species.

Neo-Darwinism is the "modern synthesis" of Darwinian evolution through natural selection with Mendelian genetics, the latter being a set of primary tenets specifying that evolution involves the transmission of characteristics from parent to child through the mechanism of genetic transfer, rather than the "blending process" of pre-Mendelian evolutionary science. Neo-Darwinism can also designate Charles Darwin's ideas of natural selection separated from his hypothesis of Pangenesis as a Lamarckian source of variation involving blending inheritance.

Which of the following is the evidence for Darwin's theory of common descent?

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. There are patterns in the fossil record that suggest other species have diverged from a single ancestor species.

  2. There are biogeographic patterns in the distribution of species, for instance distinct bird species on an island tend to resemble one another, suggesting a common ancestor.

  3. There are common stages in the early embryological development of organisms representing several distinct vertebrate groups.

  4. All of above

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Correct Option: D

Which of the following is responsible for evolution according to Neo-darwinism?

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. Mutation

  2. Natural selection

  3. Adaptive radiation

  4. Both A and B

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Correct Option: D
Explanation:

Natural selection is the core creative agent in evolution, mutations, variations, are also factors leading to the development of new species. Organisms more suited to the environmental conditions will survive empowering the forces of competition. The organism with beneficial mutations, stronger genotype will be the fittest and will survive. After successive generations, all the stronger gene pool leads to an evolution of new species.