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प्रश्न
In a fresh water environment like pond, rooted autotrophs are
पर्याय
Nymphaea and typha
Ceratophyllum and Utricularia
Wolffia and pistia
Azolla and lemna
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उत्तर
Nymphaea and typha
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.
- Loamy soil is best suited for plant growth as it contains a mixture of silt, sand, and clay.
- The process of humification is slow in the case of organic remains containing a large amount of lignin and cellulose.
- Capillary water is the only water available to plant roots as it is present inside the micropores.
- Leaves of shade plant have more total chlorophyll per reaction centre, low ratio of chl a and chl b are usually thinner leaves.
In soil water available for plants is
The plant of this group are adapted to live partly in water and partly above substratum and free from water
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?
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?
Explain Raunkiaer classification in the world’s vegetation based on the temperature.
What are the advantages of seed dispersal?
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 ______
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 |
Column I represent the size of the soil particles and Column II represents the type of soil components. Which of the following is the correct match for the Column I and Column IL
| Column - I | Column - II | ||
| I) | 0.2 to 2.00 mm | i) | Slit soil |
| II) | Less than 0.002 mm | ii) | Clayey soil |
| III) | 0.002 to 0.02 mm | iii) | Sandy soil |
| IV) | 0.002 to 0.2 mm | iv) | Loamy soil |
What is the soil profile? Explain the characters of different soil horizons.
