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from dps north kolkata, Kolkata
Subject :NSO    Class : Class 7

Refer to the given figure of body cells and select the incorrect statements regarding X, Y and Z.

(i) Y maintains pH of blood.
(ii) Z is an important part of our immune system.
(iii) Z plays a key role in transporting gases in the blood.
(iv) The pigment present in X absorbs oxygen and transports it to the cells all over the body.

A(i), (ii) and (iv) only
B(i) and (iii) only
C(iii) only
D(ii) and (iv) only


please explain

Ans 1:

soumil srivastava from dps, paradip
Class : Class 9
in this case picture depict is wrong . WBC should be smaller than RBC in size .

Ans 2:

MAyukh Ghosh from Birla Vidya Niketan, New Delhi
Class : Class 7
bro

Ans 3:

kartick Somasundaram from san academy, chennai
Class : Class 1
No, you are wrong

Ans 4:

PRIYANSHU DEB from New Green Field School, Saket, New Delhi
Class : Class 7
i think it should be D,

Ans 5:

Sara Kashyap from Vista International, HYDERABAD
Class : Class 7
someone said that the question is wrong.... but look at the wbc AND rbc again... its correct

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