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Subject :NSO    Class : Class 5

Where does the exchange of gases takes place in mammals?

A Windpipe
B Lungs
C Blowhole
D Both B and C


But whales breath through blowhole.They are mamals

Ans 1:

Class : Class 5
Answer should be B as whales and dolphins take in air through blowholes but exchange of gases happens in lungs

Ans 2:

Class : Class 4

Ans 3:

Class : Class 5
oh that means blowholes are just like winpipegot it

Ans 4:

Class : Class 7
Blowhole is used to take oxygen in, but exchange of gases take place in lungs.

Ans 5:

Class : Class 6
ans. is d as dolphin is mammal and breathes through blowholes

Ans 6:

Class : Class 6
correct answer is option (D). as dolphin

Ans 7:

Class : Class 5
d is the answer

Ans 8:

Class : Class 5
D is the correct ans

Ans 9:

Class : Class 6
What about whales and dolphins?

Ans 10:

Class : Class 6
the answer should be D because-1. dolphins and whales are mammals

Ans 11:

Class : Class 5
Ans is d as dolphins and whales are mammals and breathe through blowholes

Ans 12:

Class : Class 5
B

Ans 13:

Class : Class 5

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