Tag: adaptations of organisms

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Questions Related to adaptations of organisms

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

Heliophytes differ from sciophytes in having

  1. Shorter internodes and thicker leaves

  2. Longer internodes and thinner leaves

  3. Shorter internodes and thinner leaves

  4. Longer internodes and thicker leaves
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Heliophytes (sun plants) typically exhibit adaptations to high light intensity, including thicker leaves to store more chlorophyll and shorter internodes to maintain a compact structure. Sciophytes (shade plants) generally have thinner leaves to maximize light absorption in low-light conditions and longer internodes to reach for light.

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

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

  1. 5-7 m

  2. 15 m and above

  3. 3-5 m

  4. 7-10 m
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

Shade plants have low

  1. Photosynthetic activity

  2. Respiratory rate

  3. Metabolic activity

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Shade plants (sciophytes) are adapted to low-light environments, which results in lower overall metabolic rates, including reduced photosynthetic and respiratory activity compared to sun-loving plants. Because they operate at lower energy levels, all these metabolic processes are typically lower.

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

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

  1. Spines

  2. Bending towards opposite side

  3. Sclerenchymatous tissue that provides extra mechanical support

  4. Tearing of corners while the middle remains saved
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Desert plants often develop sclerenchymatous tissues, which are rigid, dead cells that provide significant mechanical strength and structural support. This reinforcement helps the leaves withstand high wind velocities without tearing.

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

Sun plants have

  1. More mechanical tissues

  2. Extensive root system

  3. Abundant flowering

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sun plants (heliophytes) are adapted to high-light environments and typically possess more mechanical tissue for structural integrity, extensive root systems to support high transpiration rates, and often show more vigorous growth and flowering compared to shade plants.