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Q. No.In smooth muscles:
1. striated fibres are bundled together in a parallel fashion
2. intercalated discs at some fusion points allow the cells to contract as a unit
3. fibres taper at both ends and do not show striations
4. cell junctions are absent
Subtopic: Cardiac Muscle & Smooth Muscle |
80%
From NCERT
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The type of connective tissue shown in the given diagram is:
I. called as the dense regular connective tissue
II. seen in tendons and ligaments
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
I. called as the dense regular connective tissue
II. seen in tendons and ligaments
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Connective Tissue |
82%
From NCERT
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Match column-I with column-II with respect to Periplaneta and select the correct option
1. a(ii), b(iii), c(iv), d(i)
2. a(iii), b(ii), c(iv), d(i)
3. a(ii), b(iii), c(i), d(iv)
4. a(iv), b(i), c(ii), d(iii)
| Column-I | Column-II | ||
| a. | Crop | (i) | Removal of excretory products |
| b. | Hepatic caeca | (ii) | Storage of food |
| c. | Gizzard | (iii) | Secrete digestive juice |
| d. | Malpighian tubules | (iv) | Grinding of food particles |
1. a(ii), b(iii), c(iv), d(i)
2. a(iii), b(ii), c(iv), d(i)
3. a(ii), b(iii), c(i), d(iv)
4. a(iv), b(i), c(ii), d(iii)
Subtopic: Cockroach: Digestive System | Cockroach: Excretory System |
88%
From NCERT
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Which one of the following is one of the paths followed by air/O2 during respiration in an adult male Periplaneta americana as it enters the animal body?
| 1. | Spiracle in metathorax, trachea, tracheoles, oxygen diffuses into cells |
| 2. | Mouth, bronchial tube, trachea, oxygen enters cells |
| 3. | Spiracles in prothorax, tracheoles, and trachea oxygen diffuses into cells |
| 4. | Hypopharynx, mouth, pharynx, trachea, tissues |
Subtopic: Cockroach: Respiratory System |
64%
From NCERT
NEET - 2013
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Regarding frogs:
Statement I: They have the ability to change the colour to hide them from their enemies (camouflage).
Statement II: They undergo summer sleep called as hibernation as well as winter sleep called as aestivation.
1. Only Statement II is correct
2. Only Statement I is correct
3. Both Statement I and Statement II are incorrect.
4. Both Statement I and Statement II are correct.
Statement I: They have the ability to change the colour to hide them from their enemies (camouflage).
Statement II: They undergo summer sleep called as hibernation as well as winter sleep called as aestivation.
1. Only Statement II is correct
2. Only Statement I is correct
3. Both Statement I and Statement II are incorrect.
4. Both Statement I and Statement II are correct.
Subtopic: Frogs |
76%
From NCERT
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Identify the incorrect statement regarding Rana tigrina:
1. Forebrain includes olfactory lobes.
2. Midbrain includes optic lobes.
3. Hindbrain consists of cerebellum and medulla oblongata.
4. There are twelve pairs of cranial nerves.
1. Forebrain includes olfactory lobes.
2. Midbrain includes optic lobes.
3. Hindbrain consists of cerebellum and medulla oblongata.
4. There are twelve pairs of cranial nerves.
Subtopic: Frogs: Anatomy (Nervous System) |
81%
From NCERT
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Assertion (A): The biceps and triceps are antagonistic in nature.
Reason (R): Biceps flexes the arm whereas triceps straightens it.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false
Reason (R): Biceps flexes the arm whereas triceps straightens it.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false
Subtopic: Animal Tissue: Muscle Types & Skeletal Muscles |
74%
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Assertion (A): Bone possess a very hard matrix but cartilage has pliable matrix.
Reason (R): Bone matric contain calcium salts but cartilage contain chondroitin salts.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false
Reason (R): Bone matric contain calcium salts but cartilage contain chondroitin salts.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false
Subtopic: Connective Tissue |
79%
From NCERT
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Assertion (A): Connective tissues link and support other tissues of the body.
Reason (R): The name of the connective tissue is after its functions.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): The name of the connective tissue is after its functions.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Connective Tissue |
From NCERT
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Assertion (A): Earthworms make the soil porous and increase the fertility of the soil.
Reason (R): They are known as friends of farmers.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): They are known as friends of farmers.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Earthworm |
57%
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