When the egg is not fertilized, the thickened uterine lining, which was prepared for implantation, breaks down and is shed along with blood and mucus through the vagina. This cyclic process is called menstruation in females. sample paper for class 10 ...
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(i) Fertilization in human females takes place in the **oviduct (fallopian tube). (ii) The uterus prepares for embryo implantation by thickening its inner lining, the endometrium, which becomes soft, spongy, and richly supplied with blood vessels. cbse class 10 science half ...
In herbivores, the small intestine is very long because plant-based food, rich in cellulose, takes longer to digest. In carnivores, it is comparatively shorter as meat is easier to digest. Thus, intestine length depends on the type of diet. 2025-26 sample ...
The pancreas secretes digestive enzymes like amylase, lipase, and trypsin that break down carbohydrates, fats and proteins. Bile juice from the liver emulsifies fats into tiny droplets, aiding lipase action and ensuring efficient digestion and absorption of nutrients. latest cbse sample ...
Acidity or indigestion in adults is mainly caused by irregular eating habits, overeating, or consumption of spicy, oily food. These disturb acid secretion in the stomach, leading to excess acid, heartburn, discomfort and improper digestion. Tiwari Academy provides CBSE Class 10 ...