std 7th L.no 2 science nutrition in animals question answer?
Answers
The nutrients used by animals include carbohydrates, lipids, nucleic acids, proteins, minerals, and vitamins. Carbohydrates are the basic source of energy for all animals. Animals obtain their carbohydrates from the external environment (compared with plants, which synthesize carbohydrates by photosynthesis)
Explanation:
Ans-1 Mecannical digestion is the break down of food by chewing and churning of food.
In chemical digestion chemical compound called engyme secreted by a different organ of the digestive track break down into large and complex substance.
Ans-2 picture uper hai ☝
Ans -3 picture uper hai☝
Ans-4 the lining of small intestine has finger like prozectipn called villi that increase the surface area of lining .This make absorbtion more efficient.
Ans-5 picture uper hai☝
Ans-6 picture uper hai
If you like my answer please vote me plez.
