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Evolution of different species in a given area starting from a
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Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as

A
adaptive radiation

B
natural selection

C
migration

D
divergent evolution

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Views: 5,926 students

Updated on: Apr 20, 2023

Book

Book:

Biology-for-NEET-Volume-2-Class-XII

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The diversification of an ancestral group into two or more species in different habitats is called divergent evolution. When this involves large number of species to occupy different ritches, this is called adaptive of evolution of different species in a given geographical are starting from a species of animals or plants and literally radiating to other areas of geography (habitats). Darwin's finches represent one of best examples of this phenomenon.
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Practice questions from Biology-for-NEET-Volume-2-Class-XII

Question 1
Easy
Views

Views: 5,237

Darwin's finches are a good example of
  1. industrial melanism
  2. connecting link
  3. adaptive radiation
  4. convergent evolution
Topic

Topic:

Evolution

Book

Book:

Biology-for-NEET-Volume-2-Class-XII

View solution

Question 2
Easy
Views

Views: 5,863

Which one of the following amino-acid was not found to be synthesized in Miller's experiment?
  1. Aspartic acid
  2. Glutamic acid
  3. Alanine
  4. Glycine
Topic

Topic:

Evolution

Book

Book:

Biology-for-NEET-Volume-2-Class-XII

View 3 solutions

Question 3
Easy
Views

Views: 6,010

According to Hugo de Vries, the mechanism of evolution is
  1. Multiple step mutations
  2. Saltation
  3. Phenotypic variations
  4. Minor mutations
Topic

Topic:

Evolution

Book

Book:

Biology-for-NEET-Volume-2-Class-XII

View 2 solutions

Question 4
Easy
Views

Views: 5,340

Flippers of Penguins and Dolphins are examples of:
  1. Convergent evolution
  2. Industrial melanism
  3. Natural selection
  4. Adaptive radiation
Topic

Topic:

Evolution

Book

Book:

Biology-for-NEET-Volume-2-Class-XII

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The given diagram illustrates the change that occurred in the frequency of phenotypes in an insect population over 10 generations. A probable explanation for this change would be
  1. Over time there was a decrease in the adaptive
  2. Over time there was an increase in the adaptive value of gene a value of gene a
  3. Over time there was an increase in the population
  4. Over time there was an decrease in the mutation of A A, A aAA,Aa rate of gene a
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Assertion : Organic compounds first evolved in earth required for origin of life were protein and nucleic acid.
Reason : All life forms were in water environment only.
  1. If both Assertion and Reason are true and Reason is the correct explanation of Assertion
  2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  3. If Assertion is true but Reason is false.
  4. If both Assertion and Reason are false.
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NEET Question Bank i Biology for AIIMS (Disha)

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Question 3
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Name the scientist who had used the set-up shown below. Write the purpose of ‘a’ in the set-up and the conclusion the scientist arrived at.
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Question 4
Easy
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Name of Pie is associated with
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  2. Cro-Magnon man
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  4. Ape man
Topic

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Evolution

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Book:

Universal Self Scorer Biology (Universal)

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each muyalin has two wys Сани с видел мов Hig fеттранно атр ро uitated by a signal sen by the central nerimas is motor neupon. A motor neuronalongwith the muscle d to it constitute motor und The junction between a on and the Garcolemma of the muscle bre is called the b scular junction or motor-end plate. A neural signal reaching co unction releases a neurotransmitter (Acetylcholine) which generates causes the release of calcium ions into the sarcoplasm, Increase ction potential in the sarcolemmp "level leads to the binding of calciury with a subunit of troponin on n filaments and thereby remove the masking of active sites for myosi MA tilising the energy from ATP hydrolysis, the myosin head now b e exposed active sites on actin to form a cross bridge (Figure 20.4). This écrocodemnal "mis, Ciliary body, mysepination of M folum huron T the for n. Many stitute one s, a globular led the heavy LMM). The HMM utwards at regular a polymerised myosin head is an active ATPase sites for actira -Troponin un -Tropomyosin Factin origin Head head Cross arm Actin filament REBS goooge bast Myosin filament come coo PROD Socied SEEDS ROP это мы много ётсуте 01 Binding COOGE PADP ATP Sing to Allosin Site WAS (Breaking of cross bridge) Moto nd SING Pa GODOOD ayin site for (Meromyosin) actr Cross bridge--Myosi bea gececom. ACCONT MANNA ADP24 he sliding filament es place by the (Formation of cross bridge Sliding/rotation Justa Amo Everly Saco 8re 20.4 Stages in cross bridge formation, rotation of head and breaking cross bridge the attached actin filaments towards the cer ՎՄԱ ԵՒ Ի bard The Iine attached to these actins are als hortening of the sarcomere, i.e., co teps, that during shortening of th reduced, whereas the han sm, releasing the ADP an dbinds and the cros hydrolysed by the my A Dun get
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Question Text
Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as
Updated OnApr 20, 2023
TopicEvolution
SubjectBiology
ClassClass 12
Answer TypeText solution:1 Video solution: 2
Upvotes283
Avg. Video Duration13 min