About 70% of total global carbon is found in: 1. grasslands 2. agro-ecosystems 3. oceans 4. forests
About 70% of total global carbon is found in:
| 1. | grasslands | 2. | agro-ecosystems |
| 3. | oceans | 4. | forests |
Subtopic: Mineral Cycling & Ecosystem Services (OLD NCERT) |
83%
From NCERT
AIPMT - 2008
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Which one of the following is heterosporous?
1. Dryopteris
2. Salvinia
3. Adiantum
4. Equisetum
Subtopic: Pteridophytes: Heterospory | Pteridophytes |
92%
From NCERT
AIPMT - 2008
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Dry indehiscent single-seeded fruit formed from the bi-carpellary syncarpous inferior ovary is:
1. caryopsis
2. cypsela
3. berry
4. cremocarp
1. caryopsis
2. cypsela
3. berry
4. cremocarp
Subtopic: Parts of Flower: III | Fruits & their Types | Flower & Parts of Flower |
AIPMT - 2008
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Which extra embryonic membrane in humans prevents desiccation of the embryo inside the uterus?
1. Chorion
2. Allantois
3. Yolk sac
4. Amnion
Subtopic: Implantation : Part 2 | Embryonic Development till Gastrulation | Implantation |
56%
AIPMT - 2008
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The fleshy receptacle of the syconus of fig encloses several:
1. achenes
2. samaras
3. berries
4. mericarps
Subtopic: Fruits & their Types |
62%
AIPMT - 2008
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Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide?
1. Bacterial leaf blight of rice
2. Downy mildew of grapes
3. Loose smut of wheat
4. Black rust of wheat
Subtopic: Breeding for Disease Resistance (OLD NCERT) | Insect & Pest Resistance (OLD NCERT) |
56%
AIPMT - 2008
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Unisexuality of flowers prevents:
1. autogamy, but not geitonogamy
2. Both geitonogamy and xenogamy
3. geitonogamy, but not xenogamy
4. autogamy and geitonogamy
Subtopic: Pollination & Outbreeding Devices |
59%
From NCERT
AIPMT - 2008
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The length of different internodes in a culm of sugarcane is variable because of:
1. shoot apical meristem
2. position of axillary buds
3. size of leaf lamina at the node below each internode
4. intercalary meristem
Subtopic: Meristematic Tissue:Classification (OLD NCERT) |
65%
AIPMT - 2008
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Which one of the following is the correct difference between rod cells and cone cells of our retina?
| Features | Rod cells | Cone cells | |
| (a) | Visual acuity | High | Low |
| (b) | Visual pigment contained | Iodopsin | Rhodopsin |
| (c) | Overall function | Vision in poor light | Colour vision and detailed vision in bright light |
| (d) | Distribution | More concentrated in centre of retina | Evenly distributed all over retina |
1. a
2. b
3. c
4. d
Subtopic: Basic Anatomy of Human Eye: 1 (OLD NCERT) | Basic Anatomy of Human Eye: 2 (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
82%
From NCERT
AIPMT - 2008
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In leaves of C4 plants, malic acid synthesis during CO2 fixation occurs in:
1. epidermal cells
2. mesophyll cells
3. bundle sheath
4. guard cells
1. epidermal cells
2. mesophyll cells
3. bundle sheath
4. guard cells
Subtopic: C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
80%
From NCERT
AIPMT - 2008
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NEET 2025 - Target Batch
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