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Statement 1 : Mammals can eat while brea...

Statement 1 : Mammals can eat while breathing.
Statement 2 : Mammals have negative-pressure breath-ing.

A

Both statement 1 and 2 correct.

B

Statement 1 is correct but statement 2 is incorrect.

C

Statement 1 is incorrect but statement 2 is correct.

D

Both statement 1 and 2 incorrect.

Text Solution

Verified by Experts

The correct Answer is:
A
The negative pressure breathing in mammals allows them to eat and breathe at the same time.
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NCERT FINGERTIPS-BREATHING AND EXCHANGE OF GASES-Breathing And Exchange Of Gases
  1. Given below is a list of different steps (i-vi) involved in respiratio...

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  2. Inspiration occurs when there is a negative pressure in the lungs with...

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  3. Statement 1 : Mammals can eat while breathing. Statement 2 : Mammals...

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  4. The ventilation movements of the lungs in mammals are governed by

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  5. Fill up the blanks in the following paragraph by selecting the correct...

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  6. Which of the following sequenes is correct to intite inspiration ? (...

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  7. Which of the following changes occur in diaphragm and intercostal musc...

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  8. During expiration, the diaphragm becomes

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  9. Exhalation is the process of expulsion of air through the respiratory ...

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  10. The given figure illustrates the changes in lung volume during the pro...

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  11. Accoding to Boyle's law, the product of pressure and volume is a cons...

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  12. Which of the following statements about the mechanism of ventilation/b...

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  13. A person breathing normally at rest, takes in and expels approximately...

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  14. Which one of the following statements is incorrect ?

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  15. Listed below are four respiratory capacities (i-iv) and four jumpled r...

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  16. Complete the following sentences by selecting the correct option. (A...

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  17. Consider the following statements each with one or two blanks. (i) L...

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  18. Consider the following statements each with two blanks. (i) Actual...

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  19. The inspiratory reserve volume + tidal volume + expiratory reserve vol...

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  20. Vital capacity of lungs is

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