Tag: ecological adaptations, succession and ecological services

Quizzes (9) Questions (94)

Questions Related to ecological adaptations, succession and ecological services

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.'

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 not an example of adaption in Xerophyte:

  1. CAM pathway

  2. Thick cuticle

  3. Absence of stomata

  4. Leaves reduces to spine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A xerophyte is the species of plants, that has the special characters to adapt in the environment with little water. Xerophytes plant have a thick waxy cuticle on the stem and leaves. This waxy cuticle reduces the water evaporation. In xerophytic plants, sunken stomata are present. which open during the night to prevent the water loss. To adapt in this environment, xerophytic plants leaves reduces into spines, which reduces the surface area of the leaf and reduces the amount of transpiration. The xerophytic plant makes their food through the CAM pathway.

So, the option is ' Absence of stomata '

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

Opuntia has spine like leaves which help in 

  1. Reducing the rate of transpiration

  2. Increasing the rate of transpiration

  3. Increasing the rate of photosynthesis

  4. Reducing the rate of photosynthesis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Opuntia has spine which are highly modified leaves. Spines help prevent water loss by reducing the rate of transpiration.
So, the correct option is '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

'Pebble plant' have _____________.

  1. Leaves modified to spines

  2. Leaves are absent

  3. Leaves are swollen

  4. Leaves modified to reduce transpiration
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lithops (stone-faced as the plants appear stone-like)  is a genus of succulent plants in the ice plant family, Aizoaceae. They avoid being eaten by blending in with surrounding rocks and are often known as pebble plants or living stones. These are small succulent plants that survive in their harsh environment by having much of the plant body below ground. Each individual plant consists of two succulent leaves fused together in the shape of an inverted cone (although some species will produce multi-headed plants). The fissure at the top of the plant is the division between the two leaves and is spine-like. 

So, the correct answer is 'leaves modified to spines'.

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

A plant with succulence in both stem (chylocauly) and roots (chylorhizy) is ___________.

  1. Ceiba

  2. Opuntia

  3. Asparagus

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

Ceiba (specifically species like Ceiba pentandra) is known for having succulent stems and roots, which helps it survive in its native habitats.

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

Xerophytes are plants which grow in ____________.

  1. Dry areas

  2. Water

  3. Place where land and water meet

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

Xerophytes are defined as plants that have adapted to survive in environments with limited water availability, commonly referred to as dry areas.

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 Rajasthan is

  1. Xerophytic

  2. Alpine

  3. Arctic

  4. Deciduous
Reveal answer Fill a bubble to check yourself
A Correct answer
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.'

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

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

  1. Xerophytes vegetation

  2. Scrub vegetation

  3. Grassland vegetation

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

When forests are destroyed, the soil often loses its moisture-retaining capacity and becomes exposed to harsh sun, leading to the development of xerophytic vegetation.

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

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

  1. Glucose

  2. Sucrose

  3. Raffinose

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

Proline is a common compatible solute (osmolyte) accumulated by plants, especially xerophytes and halophytes, to maintain osmotic balance and protect cellular structures under drought stress.