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Evolution Biology - Evolution

Uttarakhand Board (UBSE) - STD 12 Science - Biology (Uttarakhand - English Medium). 644 questions in this chapter.

Question types

Evolution question types

644 questions across 5 question groups — pick any mix to generate a Biology paper with step-by-step answer keys.

644
Questions
5
Question groups
5
Question types
Sample Questions

Evolution questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
Identify the examples of convergent evolution from the following:
  • A
    Flippers of penguins and dolphins.
  • ✓
    Eyes of octopus and mammals.
  • C
    Vertebrate brains.
  • D
    None of these

Answer: B.

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Q 2M.C.Q (1 Marks)1 Mark
Which one of the following character differentiate man from other mammals?
  • A
    Superior intelligence
  • B
    Power of speech
  • C
    Social life
  • ✓
    Greater cranial capacity

Answer: D.

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Q 5M.C.Q (1 Marks)1 Mark
Industrial melanism is an example of:
  • A
    Drug resistance.
  • B
    Darkening of skin due to smoke from industries.
  • ✓
    Protective resemblance with the surroundings.
  • D
    Defensive adaptation of skin against ultraviolet radiations.

Answer: C.

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Q 112 Marks Questions2 Marks
Select two pairs from the following which exhibit divergent evolution. Give reasons for your answer.
  1. Forelimbs of cheetah and mammals.
  2. Flippers of dolphins and penguins.
  3. Wings of butterflies and birds.
  4. Forelimbs of whales and mammals.
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Q 122 Marks Questions2 Marks
Select the analogous structures from the combinations given below:
  1. Forelimbs of whales and bats
  2. Eyes of octopus and mammals
  3. Tuber of sweet potato and potato
  4. Thorns of Bougainvillea and tendrils of Cucurbita
  1. ​​​​​​​State the kind of evolution they represent.
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Q 132 Marks Questions2 Marks
  1. Select the homologous structures from the combinations given below:
  1. Forelimbs of whales and bats.
  2. Tuber of potato and sweet potato.
  3. Eyes of octopus and mammals.
  4. Thorns of Bougainvillea and tendrils of Cucurbita.
  1. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​State the kind of evolution they represent.
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Q 183 Marks Question3 Marks
Rearrange Ramapithecus, Australopithecus and Homo habilis in the order of their evolution on the Earth. Comment on their evolutionary characteristics.
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Q 203 Marks Question3 Marks
  1. Explain adaptive radiation with the help of a suitable example.
  2. Cite an example where more than one adaptive radiation have occurred in an isolated geographical area. Name the type of evolution your example depicts and state why it is so named.
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Q 225 Marks Questions5 Marks
Using various resources such as your school Library or the internet and discussions with your teacher, trace the evolutionary stages of any one animal say horse.
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Q 255 Marks Questions5 Marks
Vicky's mother was using the same mosquito repellent cream from last six years. She was regularly complaining that this cream has no effects on mosquitoes now. Hearing this, Vicky advised his mother to change the cream as regular usage has led the mosquitoes to develop resistance against it. His mother changed the cream and could notice its effect on mosquitoes.
  1. Explain how mosquitoes were not affected by the previous cream?
  2. On what factors, Darwin's theory was based?
  3. Can you relate this incident to Darwin's concept? How?
  4. Identify the values shown by Vicky.
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