Tag: adaptive features

Questions Related to adaptive features

Vegetation of Rajasthan is

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

  1. Xerophytic

  2. Alpine

  3. Arctic

  4. Deciduous

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Correct Option: A
Explanation:

Vegetation of Rajasthan is xerophytic. It is a geographic region with low rainfall, high temperature, loose and sandy soil. It consists of spiny shrub, cactus. Caatinga is a type of xerophytic vegetation.

Thus, the correct answer is 'Xerophytic.'

After the destruction of forests, what type of vegetation is expected to develop?

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

  1. Xerophytes vegetation

  2. Scrub vegetation

  3. Grassland vegetation

  4. Evergreen vegetation

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Correct Option: A

The most common organic solute stored by xerophytes for maintaining osmotic and water potential is

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

  1. Glucose

  2. Sucrose

  3. Raffinose

  4. Proline

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Correct Option: D

Plants adapted to open, sunny habitats are

biology adapting to a habit extreme adaptations adaptive features adaptations of organisms

  1. Sciophytes

  2. Heliophytes

  3. Mesophytes

  4. Epiphytes

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Correct Option: B

Plants growing under shade of other plants are

biology adapting to a habit extreme adaptations adaptive features adaptations of organisms

  1. Epiphytes

  2. Semi-epiphytes

  3. Mesophytes

  4. Sciophytes

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Correct Option: D

Heliophytes differ from sciophytes in having

biology adapting to a habit extreme adaptations adaptive features adaptations of organisms

  1. Shorter internodes and thicker leaves

  2. Longer internodes and thinner leaves

  3. Shorter internodes and thinner leaves

  4. Longer internodes and thicker leaves

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Correct Option: A

Match column I with column II

   Column I    Column II
 A.  Halophytes  1.  Saline soil
 B.  Psammophytes  2.  Sandy soil
 C.  Chasmophytes  3.  Rock crevices
 D.  Oxylophytes  4.  Acidic soil

biology adapting to a habit extreme adaptations adaptive features adaptations of organisms

  1. A- 1, B- 2, C- 3, D- 4

  2. A- 1, B- 3, C- 2, D- 4

  3. A- 1, B- 4, C- 3, D- 2

  4. A- 1, B- 3, C- 4, D- 2

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Correct Option: A
Explanation:
   Column I  Column II
 A.  Halophytes  Saline soil
 B.  Psammophytes  Sandy soil
 C.  Chasmophytes  Rock crevices
 D.  Oxylophytes  Acidic soil

Hence, option A is correct.

Tall trees of what range of height have strong butresses at their base?

biology adapting to a habit extreme adaptations adaptive features adaptations of organisms

  1. 5-7 m

  2. 15 m and above

  3. 3-5 m

  4. 7-10 m

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Correct Option: B
Explanation:

The trees having a height 15 m and above have strong buttresses at their base. Buttresses are modified roots appear from the basal parts of main stem and spread in different directions in the soil, eg, Ficus, Bombax, etc. Thus the correct answer is option B.

Shade plants have low

biology adapting to a habit extreme adaptations adaptive features adaptations of organisms

  1. Photosynthetic activity

  2. Respiratory rate

  3. Metabolic activity

  4. All of the above

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Correct Option: D

The leaves of desert plants are not torn away by high wind velocity because of

biology adapting to a habit extreme adaptations adaptive features adaptations of organisms

  1. Spines

  2. Bending towards opposite side

  3. Sclerenchymatous tissue that provides extra mechanical support

  4. Tearing of corners while the middle remains saved

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Correct Option: C