Fsc part 2 online preparation for biology chapter 15 (Homeostasis)

Online Short Questions For Chapter 1 "12th Class Biology Chapter 15 Short Questions Preparation "

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Biology - 12th Class Biology Chapter 15 Short Questions Preparation

Question # 1

Give adaptation of marine fish for its survival in cold environment.

  • Ans 1: These fishes have a thick layer of insulting fat called blubber, which prevent excess heat loss from the body.
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Prepare Complete Set Wise Questions For Chapter 1 "12th Class Biology Chapter 15 Short Questions Preparation "

12th Class Biology Chapter 15 Short Questions Preparation - Set 1

Question # 1

Give adaptation of marine fish for its survival in cold environment.

  • Ans 1: These fishes have a thick layer of insulting fat called blubber, which prevent excess heat loss from the body.
Submit

12th Class Biology Chapter 15 Short Questions Preparation - Set 2

Question # 1

What are Xerophytes?Give its examples.

  • Ans 1: Plant which grow under drought or in extreme shortage of water theses plants are called xerophytes. E.g, Cacti, Opuntia, Calatropis.
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12th Class Biology Chapter 15 Short Questions Preparation - Set 3

Question # 1

What is hemodialysis and peritoneal dialysis?

  • Ans 1: Hemodialysis: mean cleaning of blood. In it blood is circulates through a machine which contains a dialyzer. Dialyzer has two spaces separated by thin membrane. Blood passes through one side of membrane and dialysis fluid from other side. The waste and excess water pass from the blood through the membrane into the dialysing fluid.
  • Ans 2: Peritoneal dialysis: work on same principle except abdomen has a peritoneal cavity, lined by a thin epithelium called peritoneum. Peritonial cavity is filled with dialysis fluid that enters the body through a catheter. Excess water and wastes pass through the peritoneum into the dialysing fluid.
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12th Class Biology Chapter 15 Short Questions Preparation - Set 4

Question # 1

Write four osmoregulatory adaptations in xerophytes.

  • Ans 1: They have following adaptations:
    1. Sunken stomata
    2. Thick cuticle
    3. Water storing tissues
    4. Reduced or complete absence of leaves.
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12th Class Biology Chapter 15 Short Questions

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