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Biology problems


  • 1. Radish is a

  • Options
  • A. bulb
  • B. conn
  • C. modified root
  • D. tuber
  • Discuss
  • 2. Primary phloem develops from

  • Options
  • A. lateral meristem
  • B. protoderm
  • C. extrastelar cambium
  • D. provascular tissue
  • Discuss
  • 3. Nymph is the name of young one of

  • Options
  • A. butterfly
  • B. beetle
  • C. housefly
  • D. cockroach
  • Discuss
  • 4. Plants receive their nutrients mainly from

  • Options
  • A. chlorophyll
  • B. atmosphere
  • C. light
  • D. soil
  • Discuss
  • 5. Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?

  • Options
  • A. Order
  • B. Subspecies
  • C. Class
  • D. Genus
  • Discuss
  • 6. Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with

  • Options
  • A. all gymnosperms, except conifers
  • B. only angiosperms
  • C. only conifers
  • D. angiosperms and all gymnosperms except conifers
  • Discuss
  • 7. Plants are killed in winter by frost

  • Options
  • A. because of desiccation and mechanical damage to the tissues
  • B. because no photosynthesis takes place at such low temperature
  • C. because respiration ceases at such low temperature
  • D. because there is no transpiration
  • Discuss
  • 8. Myopia is connected with

  • Options
  • A. ears
  • B. eyes
  • C. lungs
  • D. None of these
  • Discuss
  • 9. Movements due to light are shown by

  • Options
  • A. flowering plants
  • B. lower plants
  • C. all land plants
  • D. all the plants
  • Discuss
  • 10. Mutation is

  • Options
  • A. a factor responsible for plant growth
  • B. a change which affects the offspring of F2 generation only
  • C. a change that is inherited
  • D. a change which affects the parents
  • Discuss

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