Tag: adapting to a habit

Questions Related to adapting to a habit

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

Show answer
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

Sun plants have

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

  1. More mechanical tissues

  2. Extensive root system

  3. Abundant flowering

  4. All of the above

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Correct Option: D

Sun loving plants are

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

  1. Halophytes

  2. Sciophytes

  3. Heliophytes

  4. Autotrophs

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Correct Option: C

Plants adapted to grow in shade are

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

  1. Psammophytes

  2. Sciophytes

  3. Mesophytes

  4. Xerophytes

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Correct Option: B

Organisms may avoid stressful conditions by suspending their activities for sometime.If they do it to avoid high temperature it is called________ and if they do it to avoid low temperature then it is called ________ .

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

  1. aestivation, miigration

  2. migration, hibernation

  3. asetivation, hibernation

  4. hibernation, asetivation

Show answer
Correct Option: A,C
Explanation:

Various organisms, if unable to migrate, might avoid the unfavorable environment by escaping in time. Polar bears go into hibernation during winter seasons to escape extreme cold. Some snails and fish undergo aestivastion to avoid summer-related problems like heat and desiccation, etc. 

Many tribes living in high altitudes of Himalayas have 

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

  1. High WBC count than people living in plains.

  2. Lower WBC count than people living in plains.

  3. Higher RBC count than people living in plains.

  4. Both RBC and WBC counts are lower than people living plains.

Show answer
Correct Option: C
Explanation:

As the altitude increases, the atmospheric pressure decreases. Thus reducing the level of oxygen. People living at higher altitudes are used to the lower density of oxygen molecules in the air. They have higher levels of haemoglobin (red blood cells) in their blood which helps them to take in more oxygen. In contrast, people living at lower altitudes have lesser haemoglobin concentrations as they experience a higher density of oxygen molecules in the air.


So, the correct answer is 'C'.