Q35 of 75 Page 6

Why is small intestine in herbivores longer than in carnivores?

Cellulose is a carbohydrate that is digested with difficulty. Herbivores animals like cow, ox, and buffalo that eat only plants (grass) have a longer small intestine to allow the cellulose, present in the plants to be digested completely.

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33

Compare alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.

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Define

(i) saprophytic nutrition


(ii) parasitic nutrition, and


(iii) holozoic nutrition. Give one example of each type.

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Define breathing. State the differences between breathing and respiration.

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Describe the process of respiration in the following parts of a plant:

(a) Root (b) Stem (c) Leaves