I have seen cows keep chewing the food even when they are not actively. Class 7

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Science Class 7 Science 188 views Jun 18, 2026 Reviewed & updated Sep 17, 2026
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I have seen cows keep chewing the food even when they are not actively. Class 7


Question 1.

I have seen cows keep chewing the food even when they are not actively grazing or eating anything. Why? Class 7

Answer:

While eating grass, it cannot chew too much just swallow it into their stomachs. In stomach, partial digestion of the food takes place. The partially digested food is brought back to mouth for gradual chewing. The chewed food again passes down to the alimentary canal for further digestion.


Question 2.

Is the process of respiration the same in all animals? Class 7

Answer:

No, respiration is not the same in all animals. It depends on their size, habitat, and complexity. Animal like human breathe through lungs, fish by gills.


Question 3.

How is this oxygen used in the body? Are breathing and respiration different? Class 7

Answer:

Oxygen is used by the body to release energy from food during respiration.

Yes, breathing is a physical process of taking in oxygen and releasing carbon dioxide, while respiration is the chemical process that uses oxygen to break down food to produce energy.

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