Q. No.The type of epithelium normally found at the ‘diffusion boundary’ in human body is:
1. Simple squamous
2. Simple cuboidal
3. Simple columnar
4. Ciliated columnar
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1. dry surface of the skin
2. moist surface of buccal cavity
3. inner lining of ducts of salivary glands and pancreatic ducts
4. lining of stomach and small intestine
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Statement I: The head of cockroach is at right angle to the longitudinal body axis.
Statement II: The head of cockroach is formed by the fusion of six segments.
1. Only statement I is correct
2. Only statement II is correct
3. Both statement I and statement II are correct
4. Both statement I and statement II are incorrect
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Statement I: Each thoracic segment in cockroach bears a pair of walking legs.
Statement II: The first pair of wings arises from prothorax and they are called as tegmina.
1. Only statement I is correct
2. Only statement II is correct
3. Both statement I and statement II are correct
4. Both statement I and statement II are incorrect
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Consider the given statements:
| I: | The crop in the alimentary canal of cockroach is also known as proventriculus, has six highly chitinous plates called teeth and helps in grinding food particles. |
| II: | The gizzard is sac-like structure used for storing food in cockroach. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
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| I: | Malpighian tubules are used in osmoregulation and excretion in cockroach. |
| II: | Malpighian tubules are present at the junction of the midgut and the hindgut in the alimentary canal of cockroach. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
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1. It is of open type.
2. It delivers oxygen to the tissues.
3. Heart lies along the mid dorsal line of thorax and abdomen.
4. The haemolymph is composed of colourless plasma and haemocytes.
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| I. | Malpighian tubules are lined by glandular and ciliated cells. |
| II. | Uric acid is the nitrogenous metabolic excretory product. |
| III. | Fat body, nephrocytes and urecose glands also help in excretion. |
| 1. | Only II is correct |
| 2. | Only I and II are correct |
| 3. | Only II and III are correct |
| 4. | I, II and III are correct |
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I. the head is represented by sub-oesophageal ganglion.
II. the nerve cord is located on the dorsal side of the body.
1. Only II is correct
2. Only I is correct
3. Both I and II are correct
4. Both I and II are incorrect
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Consider the given two statements:
I: The vision in cockroach can be best described as a mosaic vision.
II: This is a nocturnal vision with more sensitivity but less resolution.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. Both I and II are incorrect
4. II is incorrect and I is correct
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