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Humans benefit from diversity of life. Give two examples.
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

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15

Chapter 15: Biodiversity and Conservation

61 questions

Q1
How do scientists extrapolate the total number of species on earth ?
Q2
Humans benefit from diversity of life. Give two examples.
Q3
List any two major causes other than anthropogenic causes of the loss of biodiversity.
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16

Chapter 16: Environmental Issues

52 questions

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Question
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Humans benefit from diversity of life. Give two examples.

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Biology Exemplar (NCERT Exemplar)

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(i) Humans derive numerous economic benefits directly from diversity of organisms.
(a)   Food products (cereals, pulses and fruits).
(b)   Firewood.
(c)   Fibre (cotton, jute from plants and silk, wool from animals).
(d)   Construction material (timber for making furniture, houses and sports goods).
(e)   Industrial products (tannins, lubricants, dyes, resins and perfumes).
(f)   Products of medicinal importance (about 25000 plants are used in traditional medicine).

(ii)  There are huge intangible benefits that humans derive from the diversity of life.
(a)   Pure oxygen.
(b)   Natural pollinators.
(c)   Flood and soil erosion control.
(d)   Nutrient replenishment.
(e)   Waste recycling by microbes and other insects, etc.
(f)   Aesthetic pleasure and mental peace.
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Question Text
Humans benefit from diversity of life. Give two examples.
TopicBiodiversity and Conservation
SubjectBiology
ClassClass 12
Answer TypeText solution:1
Upvotes101