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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
The answer is B since all are invertebrates.

Ans 2:

Class : Class 6
they all lack a back bone

Ans 3:

Class : Class 7
B

Ans 4:

Class : Class 8
they all lack backbone as they all are are invertebrates

Ans 5:

Class : Class 6
they all lack backbone

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Subject :NSO    Class : Class 7

If a person is unable to breathe on his own due to some medical illness, an iron lung may be employed to take over the role of the diaphragm and the intercostal muscles. The person is placed in a cylindrical chamber called iron lung while his head remains outside the cylinder. An airtight seal is placed around his neck. Changes in the air pressure within the iron lung allow the flow of air into and out of his lungs. Which of the following statements about the iron lung is correct?

ABreathing with an iron lung is still possible if th patient's trachea is completely blocked.
BDuring exhalation, the iron lung causes the patient's lungs to expand.
CDuring inhalation, the pressure in the patient's lungs is increased.
DInhalation and exhalation is possible even if the patient's lung is punctured.


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Class : Class 7
.

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Class : Class 7

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
b

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Ok really...ur name is scary bro

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