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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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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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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| 1. | Paurometabolous with nymph moulting about 13 times to reach the adult form and the next to last nymphal stage has wing pads. |
| 2. | Paurometabolous with nymph moulting about 13 times to reach the adult form and the next to last nymphal stage has wings. |
| 3. | Holometabolous with nymph moulting about 13 times to reach the adult form and the next to last nymphal stage has wing pads. |
| 4. | Holometabolous with nymph moulting about 13 times to reach the adult form and the next to last nymphal stage has wings. |
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If the head of cockroach is removed, it may live for few days because:
1. The cockroach does not have a nervous system.
2. The head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
3. The head holds a third of the nervous system while the rest is situated along the dorsal part of its body.
4. The supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
The main function of adipose tissue is:
1. providing insulation from heat and cold
2. providing protective padding around organs
3. to be a reserve of lipids
4. providing feedback for hunger and diet to the brain
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Anal styles are borne on the:
| 1. | 9th segment only in female cockroach |
| 2. | 9th segment only in male cockroach |
| 3. | 10th segment only in female cockroach |
| 4. | 10th segment only in male cockroach |
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