NCERT textbook says that plant growth is unique. What is the character of plant growth being referred to?
1. Plants have a closed growth
2. Capacity of unlimited growth throughout life
3. Complete absence of growth after a certain age
4. Growth without development

Subtopic: Ā Growth |Ā Growth Model |
Ā 89%
From NCERT
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All the following contribute to an increase in girth of dicots and gymnosperms except:

1. Apical meristem 2. Lateral meristems
3. Vascular cambium 4. Cork-cambium
Subtopic: Ā Growth |Ā Growth Model |Ā Growth Terminology |
Ā 79%
From NCERT
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The exponential growth in plants can be expressed as: W1 = W0ert where ‘e’ denotes:
1. Initial size at the beginning of the period
2. base of natural logarithms
3. growth rate/elongation per unit time
4. time of growth
Subtopic: Ā Growth Model |
Ā 92%
From NCERT
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The diagram given shows hetrophylly in Larkspur. What will be true regarding this phenomenon?
 
I: It is more important for plants than most animals.
II: Plants have open growth and development.

1. Both I and II are true and II explains I.
2. Both I and II are true but II does not explain I.
3. I is correct and II is incorrect.
4. I is incorrect and II is correct.
Subtopic: Ā Growth Model |
Ā 58%
From NCERT
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