Tag: ecological adaptations, succession and ecological services

Questions Related to ecological adaptations, succession and ecological services

Ephemeral xerophytes grow during 

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Winter

  2. Spring

  3. Rainy season

  4. All the seasons

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Correct Option: C

Lamina is reduced in

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Xerophytes

  2. Mesophytes

  3. Hydrophytes

  4. Climbers

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Correct Option: A
Explanation:

Lamina is reduced in xerophytic plants. In xerophytes, the petiole is modified into expanded green structure which carries out photosynthesis in case of reduced lamina.  For example, in Australian acacia.

Thus, the correct answer is 'Xerophytes.'

Which one is a exclusive xerophytic adaptation?

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Absence of stomata

  2. Long tap root system

  3. Stipular leaves

  4. Spines

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Correct Option: B

A physiological xerophyte is

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Salicornia

  2. Euphorbia

  3. Salvia

  4. Agave

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Correct Option: A

Which of the following is not a character of xerophytes?

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Thick cuticle

  2. Well developed mechanical tissue

  3. Well developed conducting tissues

  4. Spongy parenchyma

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Correct Option: D
Explanation:

Xerophytes are the plants that survive in an environment having little supply of water or moisture. To survive with limited water supply they have anatomical modifications such as-

1) The epidermis is covered with thick cuticle to prevent water loss by transpiration.
2) Waxy coating is present on leaves and stem to prevent transpiration losses and stomata are generally confined on the lower surface of the epidermis of leaves.
3) Mechanical and vascular tissues are well developed.
4) The xerophytes have abundant palisade parenchyma and limited spongy parenchyma.
So, the correct answer is 'Spongy parenchyma'.

Deep roots occur in

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Perennial nonsucculent xerophytes

  2. Perennial succulent xerophytes

  3. Annual xerophytes

  4. Ephemeral xerophytes

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Correct Option: A
Explanation:

In non-succulent Perennial have extensive root systems, roots penetrate deep into the soil and establish contact with sub-soil water. 

  • Some trees have deep, extensive root systems that anchor them to hillsides. Shrubs service berry is a deep-rooted deciduous shrub or small tree that grows best in well-drained, slightly acidic, moist soil. Ground covers, Vetiver Grass.
So, the correct option is 'Perennial non succulent xerophytes'

Xerophytes possess

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Sunken stomata

  2. Deep roots

  3. Thick cuticle

  4. All the above

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Correct Option: D

Ephemerals are a type of xerophytes ______________.

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Drought escaping

  2. Drought resisting

  3. Drought enduring

  4. None of the above

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Correct Option: A

Acacia arabica is a ________

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Hydrophyte

  2. Mesophyte

  3. Xerophyte

  4. None of these

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Correct Option: C
Explanation:

Acacia arabica is xerophyte because it is seen in desert places.

What is wrong about xerophytes?

botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

  1. Sunken stomata

  2. Small spiny leaves

  3. Thick cuticle

  4. Larger number of stomata

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Correct Option: D