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Devansh trehan from Blue bells international school , New delhi
Subject :NSO    Class : Class 3

Study the given classification table regarding functions of different body parts. Which of the following can be 'X'?


A Heart
B Small intestine
C Stomach
D Kidney


brain is connected to spinal cord and transmits signals through spinal cord .similarly heart sends blood to lungs for oxygenation and oxygenated blood is returned back to heart .there is no relation of lungs and kidney

Ans 1:

Riddhima Vashist from Podar International School, Mumbai
Class : Class 3
Heart is the correct answer

Ans 2:

Purva Kulkarni from Podar International School ICSE Kalyan, Dombivali east
Class : Class 8
i think heart is correct answer. please elaborate, how come kidney is right answer a

Ans 3:

Twisha Khurana from First steps IB World school , Chandigarh
Class : Class 5
I think it should be heart not kidney

Ans 4:

Avyukta Saraswat from St Francis School , Greater noida west
Class : Class 3
I think both kidneys and hearth are correct. beacause lungs are in respiratory,curculatory and excretory system as they help us to brathe ,make pure blood and also the blood goes from hearth then lungs and then all parts. Plese tell how hearth is wrone.

Ans 5:

Suhani Chauhan from Sai international School, bhubaneswar, Bhubaneswar
Class : Class 6
I thinks it should be heart. As lungs are connected with the heart not kidney.

Ans 6:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
Answer is D because both lungs n kidney are in Exetery system

Ans 7:

Sanskriti Ranjan from SETH ANANDRAM JAIPURIA SCHOOL, Ghaziabad
Class : Class 6
lungs and spinal cords are part of nervous system so lungs and kidney are part of excretory system(lungs dispose co2 from body)

Ans 8:

Kanak goel from Ursuline senior secondary convent school, Greater Noida
Class : Class 6
Heart

Ans 9:

Eshan Ghosh from Don Dosco, Berhampore
Class : Class 3

Ans 10:

ANKIT from devin-national school, bangalore
Class : Class 5
the spi

Ans 11:

saisavit from sri kumaran ps, bangalore
Class : Class 8
D because spinal cord helps brain to control the body.

Ans 12:

Gurram Srisanthan from St Patricks Academy, Bengaluru
Class : Class 3
i think brain n spinal cord are parts of nervous system whereas kidneys n lungs are part of excretory system,through lungs we inhale o2 n exhale co2,kidneys excrete urines

Ans 13:

Advik Daga from Global Edge School, Hyderabad
Class : Class 4
It will be kidney because lungs give out carbon dioxide as waste.Heart is the wrong answer........

Ans 14:

Riddhima Vashist from Podar International School, Mumbai
Class : Class 3

Ans 15:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
D

Ans 16:

ANKIT from devin-national school, bangalore
Class : Class 5
spinal cord connects every organ to brain an

Ans 17:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5

Ans 18:

Avyukta Saraswat from St Francis School , Greater noida west
Class : Class 3
I think option a is also correct with option d as lungs are in curcularury system system too as the blood first goes to the lungs after the heath and then the body. Lungs also filter air and help us breathe so they are in excretory and resperatory system too. Plese tell how option a hearth is wrong .

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