Home
Class 8
BIOLOGY
Thyroxine controls in frogs and the deve...

Thyroxine controls______ in frogs and the development of during_____ embryonic development of other vertebrates. Thyroxine production requires the presence of in diet. Select the correct sequence of______ words to complete the above passage.

A

Development, Circulatory system, lodine

B

Metamorphosis, Circulatory system, Calcium

C

Development, Nervous system, Iron

D

Metamorphosis, Nervous system, lodine

Text Solution

AI Generated Solution

The correct Answer is:
To complete the passage regarding the role of thyroxine in frogs and other vertebrates, we need to fill in the blanks with the correct terms. Here’s the step-by-step solution: 1. **Identify the role of thyroxine in frogs**: Thyroxine is crucial for the process of metamorphosis in frogs. It regulates the transformation from tadpole to adult frog. 2. **Determine what thyroxine controls in other vertebrates**: In other vertebrates, thyroxine plays a significant role in the development of the nervous system during embryonic development. 3. **Identify the dietary requirement for thyroxine production**: The production of thyroxine requires the presence of iodine in the diet. Iodine is an essential nutrient that the body needs to synthesize thyroxine. 4. **Fill in the blanks**: - The first blank should be "metamorphosis" (Thyroxine controls **metamorphosis** in frogs). - The second blank should be "nervous system" (and the development of the **nervous system** during embryonic development of other vertebrates). - The third blank should be "iodine" (Thyroxine production requires the presence of **iodine** in diet). 5. **Final Passage Completion**: - Thyroxine controls **metamorphosis** in frogs and the development of the **nervous system** during **embryonic development** of other vertebrates. Thyroxine production requires the presence of **iodine** in diet. ### Final Answer: Thyroxine controls **metamorphosis** in frogs and the development of the **nervous system** during **embryonic development** of other vertebrates. Thyroxine production requires the presence of **iodine** in diet.
Promotional Banner

Topper's Solved these Questions

  • REPRODUCTION AND ENDOCRINE SYSTEM

    SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION (HOTS)|4 Videos

  • POLLUTION OF AIR AND WATER

    SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION (HOTS) |5 Videos

  • SAMPLE PAPER 4 (CLASS VIII)

    SCIENCE OLYMPIAD FOUNDATION |Exercise SECTION C - SCIENCE|4 Videos

Similar Questions

Explore conceptually related problems

Karan nath took over 'D' north Motor Company' from his aliling father three months ago. In the past the company was not performing well. Karan was determined to improve the company's performance. He obseved that the methods of production as well as selection of employees in hte company were not scientific. He believed that there was only one best method to maximize efficiency. He also felt that once the method is developed, the workers ofthe company should be trained to learn that best method'. He asked the Production Mangaer the develop the est method and carry out the necesasary training. The Production Manager developed this method using several parameters right from deciding the sequence of operations, place for men, machines and raw materials till the delivery of the product to the customers. This method was implemented throughout the organization. It helped in increasing the output, improving the quality and reducing the cost and wastage. Identify and explain the principles and the technique of scientific management followed by the Production Manager in the above case.

Karan Nath took over D' north Motor Company from his ailing father three months ago. In the past, the company was not performing well Karan was determined to improve the company's performance He observed that the methods of production as well as selection of employees in the company were not scientific He believed that there was only one best method to maximise efficiency He also felt that once the method is developed, the workers of the company should be trained to learn that 'best method He asked the Production Manager to develop the best method and carry out the necessary training. The Production Manager developed this method using several parameters right from deciding the sequence of operations, place for men, machines and raw materials till the delivery of the product to the customers. This methods was implemented throughout the organisation. It helped in increasing the output, improving the quality and reducing the cost and wastage Identify and explain the principles and the technique of scientific management followed by the Production Manager in the above case