Presence of which of the following structures that helps in breathing is the characteristic of all mammals?

Skin

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Diaphragm

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Gill

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Spiracle

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Solution

The correct option is B Diaphragm
The diaphragm is a crucial part of the human respiratory system. It is a dome-shaped muscular structure that regulates the air pressure inside the thoracic chamber. Its presence is the characteristic feature of all mammals.

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Q. Which of the following is the characteristic feature that is found only in mammals?

Breathing is a process that:
(i) Provides oxygen to the body.
(ii) Breaks down food to release energy.
(iii) Helps the body to get rid of carbon dioxide.
(iv) Produces water in the cells.
Which of the following correctly defines the characteristics of breathing?

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Presence of which of the following structures that helps in breathing is the characteristic of all mammals?

The correct option is B DiaphragmThe diaphragm is a crucial part of the human respiratory system. It is a dome-shaped muscular structure that regulates the air pressure inside the thoracic chamber. Its presence is the characteristic feature of all mammals.

The correct option is B Diaphragm
The diaphragm is a crucial part of the human respiratory system. It is a dome-shaped muscular structure that regulates the air pressure inside the thoracic chamber. Its presence is the characteristic feature of all mammals.