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प्रश्न
Analogy
Enzymes: Digestive glands:: _______: Endocrine glands.
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उत्तर
Enzymes: Digestive glands:: Hormones: Endocrine glands.
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संबंधित प्रश्न
Describe the parts of our tooth with the help of a labelled diagram.
If the teeth are not cleaned regularly, they become covered with a sticky yellowish layer W of food particles and bacteria. Since layer W covers the teeth, the alkaline liquid X secreted by glands Y inside the mouth cannot reach the teeth surface to neutralise the acid formed by the action of organisms Z on sugary food, and hence tooth decay sets in.
(a) What is W known as?
(b) What is (i) X, and (ii) Y?
(c) What are organisms Z?
(d) State one way of removing layer W from the teeth.
What is roughage? Give two examples.
Study the diagram given below and then answer the question that follows:
Name the parts labelled 1, 2, 3, 4, 5 and 6.
Study the following dental formula and then answer the question that follow:
`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
State the total number of teeth present in the dentition.
Put a tick (✓) against the most appropriate alternative in the following statement.
The hardest substance in your body?
Give reasons for the following.
Meat eating animals have strong canines.
Answer the following question.
Small Intestine is very long and coiled. Even if we jump and run, why it does not get twisted? What can happen if it gets twisted?
Describe the alimentary canal of man
During deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in the
