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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान कक्षा १२

The plant of this group are adapted to live partly in water and partly above substratum and free from water

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प्रश्न

The plant of this group are adapted to live partly in water and partly above substratum and free from water

विकल्प

  • Xerophytes

  • Mesophytes

  • Hydrophytes

  • Halophytes

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उत्तर

Mesophytes

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Dispersal of Fruits and Seeds
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 6: Principles of Ecology - Evaluation [पृष्ठ १३१]

APPEARS IN

सामाचीर कलवी Biology (Botany) [English] Class 12 TN Board
अध्याय 6 Principles of Ecology
Evaluation | Q 11 | पृष्ठ १३१
सामाचीर कलवी Botany [English] Class 12 TN Board
अध्याय 6 Principles of Ecology
Evaluation | Q 11 | पृष्ठ १५८

संबंधित प्रश्न

Read the given statements and select the correct option.

  1. Loamy soil is best suited for plant growth as it contains a mixture of silt, sand, and clay.
  2. The process of humification is slow in the case of organic remains containing a large amount of lignin and cellulose.
  3. Capillary water is the only water available to plant roots as it is present inside the micropores.
  4. Leaves of shade plant have more total chlorophyll per reaction centre, low ratio of chl a and chl b are usually thinner leaves.

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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?


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.


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.


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