All animals must supply their cells with oxygen and rid their body of carbon dioxide ... Respiration depends on diffusion of gaseous oxygen (O2) and carbon dioxide ... 39-7, p. 685. trachea (tube inside body). spiracle (opening to body surface).
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respiration in organisms class 7 ppt download
Free PDF download of Class 7 Science Chapter 10 - Respiration in Organisms Revision Notes & Short Key-notes prepared by expert Science teachers from .... Cellular respiration is the aerobic breakdown of glucose in the mitochondria to make ATP. Respiratory systems are the organs in animals that exchange gases with .... Remember: An organism that makes its own food is called an ... During photosynthesis, plants and some other organisms use energy from the sun to convert (change): ... Photosynthesis. 7. Circle the letter of each product of photosynthesis. a. water ... During respiration, cells break down simple food molecules such as sugar ... 3925e8d270