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URL:https://www.learndesk.us/class-hi/4770644828880896/lesson/4afc3d25273a4e962193008416622b72?ref=outlook-calendar
SUMMARY:Respiration in Organisms Q.No.4 and 5
DTSTART;TZID=America/Los_Angeles:20260511T190000
DTEND;TZID=America/Los_Angeles:20260511T200000
LOCATION:https://www.learndesk.us/class-hi/4770644828880896/lesson/4afc3d25273a4e962193008416622b72?ref=outlook-calendar
DESCRIPTION: 4. Take three test tubes. Fill &frac34;th of each with water. Label them A, B and C. Keep a snail in test-tube A, a water plant in test-tube B, and in C, keep snail and plant both. Which test tube would have the highest concentration of CO2?
5. Tick the correct answer:
(a) In cockroaches, air enters the body through
(i) lungs&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(ii) gills&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(iii) spiracles&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(iv) skin
(b) During heavy exercise, we get cramps in the legs due to the accumulation of
(i) carbon dioxide&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(ii) lactic acid&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (iii) alcohol&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (iv) water
(c) Normal range of breathing rate per minute in an average adult person at rest is:
(i) 9&ndash;12&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;...

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