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[A]: Smoking stimulates secretion of gas...

[A]: Smoking stimulates secretion of gastric juice in stomach even when stomach is empty.
[R]: It is aimed at quickening the digestion of food when taken

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
C
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Which of the following statement is correct about Digestive system of Cockroach? (i) Mouth opens into a short tubular pharynx, leading to a narrow tubular passage called oesophagus. (ii) Gizzard helps in grinding the food particles. (iii) A ring of 6-8 blind tubules called hepatic or gastric caeca is present at the function of foregut and midgut, which secrete digestive juice. (iv) At the junction of midgut and hindgut is present another ring of 100-150 yellow coloured thin filamentous malpighian tubules which help in removal of excretory products from haemolymph.

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Name the following : (i) Where food is completely digested ? (ii) Juice that contains trypsin enzyme. (iii) Who secretes bile juice ? (iv) That absorbs water from unabsorbed food. (v) Two secretions released by gastric glands.

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