Fsc part 2 online preparation for biology chapter 19 (Growth and Development)

Online Short Questions For Chapter 5 "12th Class Biology Chapter 19 Short Questions Preparation "

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Biology - 12th Class Biology Chapter 19 Short Questions Preparation

Question # 1

Define blastocoel and neurocoel.

  • Ans 1: At blastula stage there is a segmentation cavity formed called blastocoel which is formed by the separation of cell.
  • Ans 2: With the formation of neural tube,there is the formation of CNS and a cavity enclosed is known as neurocoel.
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Prepare Complete Set Wise Questions For Chapter 5 "12th Class Biology Chapter 19 Short Questions Preparation "

12th Class Biology Chapter 19 Short Questions Preparation - Set 1

Question # 1

Define blastocoel and neurocoel.

  • Ans 1: At blastula stage there is a segmentation cavity formed called blastocoel which is formed by the separation of cell.
  • Ans 2: With the formation of neural tube,there is the formation of CNS and a cavity enclosed is known as neurocoel.
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12th Class Biology Chapter 19 Short Questions Preparation - Set 2

Question # 1

Differentiate between gerontology and teratology.

  • Ans 1: Gerontology: Study of aging is called gerontology.
  • Ans 2: Teratology:Teratology is the branch of biology,which deals with abnormal developments and their causes.
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12th Class Biology Chapter 19 Short Questions Preparation - Set 3

Question # 1

Give role of temperature in plant growth.

  • Ans 1: Temperature influences the growth within a certain range (0-35oC). Normally rate of growth increase with rise of temperature and decrease with decrease in temperature. For maximum growth the optimum temperature is 25-35oC and it is least at 5-10oC. But at very high temperature 35 to 40oC the rate of growth stops and plant may dies.
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12th Class Biology Chapter 19 Short Questions Preparation - Set 4

Question # 1

Differentiate between primary organizer and primary induction.

  • Ans 1: Primary organizer: The area of the dorsal lip which induces the development of secondary embryo in the host is called primary organizer.
  • Ans 2: Primary induction: The ability of the primary organizer to induce the growth of secondary embryo in host is called primary induction
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12th Class Biology Chapter 19 Short Questions

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