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प्रश्न
Ophrys an orchid resembling the female of an insect so as to able to get pollinated is due to phenomenon of
पर्याय
Myrmecophily
Ecological equivalents
Mimicry
None of these
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उत्तर
Mimicry
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.
Read the given statements and select the correct option.
Statement A: Cattle do not graze on weeds of Calotropis.
Statement B: Calotropis have thorns and spines, as a defense against herbivores.
The plant of this group are adapted to live partly in water and partly above substratum and free from water
A free-living nitrogen-fixing cyanobacterium which can also form a symbiotic association with the water fern Azolla
Strong, sharp spines that get attached to animal’s feet are found in the fruits of
Sticky glands of Boerhaavia and Cleome support
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?
Soil formation can be initiated by biological organisms. Explain how?
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 myrmecophily?
What is a seed ball?
What is co-evolution?
Explain Raunkiaer classification in the world’s vegetation based on the temperature.
Describe the dispersal of fruit and seeds by animals.
Read the following statements and fill up the blanks with the correct option.
- Total soil water content in soil is called ______
- Soil water not available to plants is called ______
- Soil water available to plants is called ______
