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प्रश्न
Sticky glands of Boerhaavia and Cleome support
पर्याय
Anemochory
Zoochory
Autochory
Hydrochory
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उत्तर
Zoochory
संबंधित प्रश्न
Read the given statements and select the correct option.
- Hydrophytes possess aerenchyma to support themselves in water.
- Seeds of Viscum are positively photoblastic as they germinate only in presence of light.
- Hygroscopic water is the only soil water available to roots of plants growing in soil as it is present inside the micropores.
- High temperature reduces use of water and solute absorption by roots.
In soil water available for plants is
Ophrys an orchid resembling the female of an insect so as to able to get pollinated is due to phenomenon of
A free-living nitrogen-fixing cyanobacterium which can also form a symbiotic association with the water fern Azolla
In a fresh water environment like pond, rooted autotrophs are
Strong, sharp spines that get attached to animal’s feet are found in the fruits of
Why are some organisms called as eurythermals and some others as stenohaline?
The organic horizon is generally absent from agricultural soils because tilling, e.g., plowing, buries organic matter. Why is an organic horizon generally absent in desert soils?
Sandy soil is not suitable for cultivation. Explain why?
Describe the mutual relationship between the fig and wasp and comment on the phenomenon that operates in this relationship.
What is thermal stratification? Mention their types.
What is co-evolution?
Explain Raunkiaer classification in the world’s vegetation based on the temperature.
Explain different types of hydrophytes with examples.
Describe the dispersal of fruit and seeds by animals.
Identify the A, B, C, and D in the given table
| Interaction | Effects on species X | Effects on species Y |
| Mutualism | A | (+) |
| B | (+) | (-) |
| Competition | (-) | C |
| D | (-) | 0 |
What is the soil profile? Explain the characters of different soil horizons.
