Tag: adapting to a habit

Quizzes (5) Questions (135)

Questions Related to adapting to a habit

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

In xerophytes, photosynthesis often occurs through

  1. Root

  2. Modified stem

  3. Stomata

  4. Scaly leaves
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In many xerophytes, leaves are reduced to spines to prevent water loss. Consequently, the stem becomes green and photosynthetic (cladode or phylloclade) to perform the function of leaves.

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

Which ones develop characteristics of xerophytes?

  1. Hydrophytes

  2. Sciophytes

  3. Heliophytes

  4. Halophytes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Halophytes grow in saline environments where water uptake is difficult due to high salt concentrations, leading to physiological drought. Thus, they often develop xerophytic adaptations.

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

Mechanical tissue is best developed in

  1. Hydrophytes

  2. Halophytes

  3. Xerophytes

  4. Mesophytes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mechanical tissues (like sclerenchyma) are highly developed in xerophytes to provide structural support and prevent wilting in the absence of high turgor pressure.

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

Sunken stomata occur in

  1. Xerophytes

  2. Hydrophytes

  3. Mesophytes

  4. Opsanophytes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sunken stomata are a specific adaptation in xerophytes to create a micro-environment of higher humidity around the pore, thereby reducing the rate of transpiration.

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

Which of the following is a xerophytic plant in which the stem is modified into a flat green and succulent structure?

  1. Casuarina

  2. Opuntia

  3. Hydrilla

  4. Acacia
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Opuntia is a plant growing in dry and xeric habitats and it has a stem containing several nodes and internodes. It is modified into a flat, fleshy and thick green leaf-like structure called phylloclade. which performs the functions of photosynthesis. The leaves gets modified into spines to help in reducing transpiration.
Multiple choice botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

An adaptation of plants to water scarcity and high temperature is

  1. Succulent stem stores water

  2. Poorly developed root

  3. They shed their leaves

  4. In unfavourable season, plants survive in dormant state as seeds
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Water storage in stem and tubers is an adaptation of plants to thrive in harsh environments with high temperatures and scarce water. Such plants called xerophytes usually develop succulent stems that can store water.
  • They have a very extensive root system to absorb the maximum amount of water from the soil.
  • Other adaptations include thick waxy cuticle, reduced leaf size, densely packed leaves, reduced number of stomata in pitted and grooved positions.
Multiple choice botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

Vegetation of geographic region with low rainfall, high temperature, loose and sandy soil is of the type called

  1. Grassland

  2. Scrub forest

  3. Xerophytic

  4. Evergreen tropical forest
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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

Thus, the correct answer is 'Xerophytic.'