Flag 7 grade science> Question 5: Tick the correct answer: (a) ...
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Question 5: Tick the correct answer: (a) In cockroaches, air enters the body through (i) lungs ii. gills (iii) spiracles (iv) skin (b) During heavy exercise, we get cramps in the legs due to the accumulation of (i) carbon dioxide ii. lactic acid iii. alcohol (iv) water (c) Normal range of breathing rate per minute in an average adult person at rest is (i) 9-12 (ii) 15-18 (iii) 21-24 (iv) 30-33 (d) During exhalation, the ribs (i) move outwards (ii) move downwards (iii) move upwards (iv) do not move at all

Harshit Singh , 3 Years ago
Grade 12th pass
anser 1 Answers
Pawan Prajapati

Last Activity: 3 Years ago

Answer:(a) In cockroaches, air enters the body through (i) lungs ii. gills (iii) spiracles √ (iv) skin (b) During heavy exercise, we get cramps in the legs due to the accumulation of (i) carbon dioxide ii. lactic acid √ ii. alcohol (iv) water (c) Normal range of breathing rate per minute in an average adult person at rest is (i) 9-12 (ii) 15-18 √ (iii) 21-24 (iv) 30-33 (d) During exhalation, the ribs (i) move outwards (ii) move downwards √ (iii) move upwards (iv) do not move at all

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