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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
oh that means blowholes are just like winpipegot it

Ans 2:

Class : Class 6

Ans 3:

Class : Class 5
D is the correct ans

Ans 4:

Class : Class 5
What about whales and dolphins?

Ans 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

Class : Class 5

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