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In the North East region of India, during the process of jhum
Biology Exemplar
Biology Exemplar

Class 12

NCERT Exemplar

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: Reproduction in Organisms

48 questions

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2

Chapter 2: Sexual Reproduction in Flowering Plants

52 questions

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3

Chapter 3: Human Reproduction

48 questions

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4

Chapter 4: Reproductive Health

37 questions

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5

Chapter 5: Principles of Inheritance and Variation

52 questions

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6

Chapter 6: Molecular Basis of Inheritance

71 questions

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7

Chapter 7: Evolution

52 questions

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8

Chapter 8: Human Health and Disease

70 questions

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9

Chapter 9: Strategies for Enhancement in Food Production

77 questions

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10

Chapter 10: Microbes in Human Welfare

59 questions

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11

Chapter 11: Biotechnology: Principles and Processes

48 questions

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12

Chapter 12: Biotechnology and its Applications

52 questions

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13

Chapter 13: Organisms and Populations

70 questions

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14

Chapter 14: Ecosystem

68 questions

Q1
Name any two organisms which can occupy more than one trophic level in an ecosystem.
Q2
In the North East region of India, during the process of jhum cultivation, forests are cleared by burning and left for regrowth after a year of cultivation. How would you explain the regrowth of forest in ecological term?
Q3
Climax stage is achieved quickly in secondary succession as compared to primary succession. Why?
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15

Chapter 15: Biodiversity and Conservation

61 questions

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16

Chapter 16: Environmental Issues

52 questions

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Question
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In the North East region of India, during the process of jhum cultivation, forests are cleared by burning and left for regrowth after a year of cultivation. How would you explain the regrowth of forest in ecological term?

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In the North East region of India, during the process of jhum cultivation, forests are cleared by burning and left for regrowth after a year of cultivation. How would you explain the regrowth of forest in ecological term?
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Forests that are cleared by burning and left for regrowth will show secondary succession. Since, soil is already present, the buried seeds open to germinate. Due to wind dispersal and some other natural forces, new seeds will be brought into the area and new species will colonise the forest again.
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Question Text
In the North East region of India, during the process of jhum cultivation, forests are cleared by burning and left for regrowth after a year of cultivation. How would you explain the regrowth of forest in ecological term?
TopicEcosystem
SubjectBiology
ClassClass 12
Answer TypeText solution:1
Upvotes105