Tag: adapting to a habit

Questions Related to adapting to a habit

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

Show answer
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

Show answer
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

Show answer
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

Show answer
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

Show answer
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

Show answer
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

Show answer
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

Show answer
Correct Option: D

A non-succulent xerophyte with thick leathery leaves having white sticky waxy coating is

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

  1. Nerium

  2. Calotropis

  3. Bryophyllum

  4. Ruscus

Show answer
Correct Option: B

Which one is not a trait 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. Sunken stomata

  3. Aerenchyma

  4. Well developed mechanical tissue

Show answer
Correct Option: C
Explanation:

Xerophytes are made up of thick cuticles and contains parenchymal tissues. It does not contain Aerenchyma.