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Which of the following statements is correct?
Biology Exemplar
Biology Exemplar

Class 12

NCERT Exemplar

Publisher:
NCERT
Subject:
Biology
1

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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
The extinction of passenger pigeon was due to
Q2
Which of the following statements is correct?
Q3
Among the ecosystem mentioned below, where can one find maximum biodiversity?
View all question
16

Chapter 16: Environmental Issues

52 questions

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Question
Hard
Timing Icon

Solving time: 4 mins

Which of the following statements is correct?

A
Parthenium is an endemic species of our country.

B
African catfish is not a threat to indigenous catfishes.

C
Steller’s sea cow is an extinct animal.

D
Lantana is popularly known as carrot grass.

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Updated on: Aug 7, 2022

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Biology Exemplar (NCERT Exemplar)

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Text SolutionText solutionverified iconVerified

Stellar’s sea cow (from Russia) is a recently extinct animal.
Parthenium (carrot grass) is an exotic weed, which grows rapidly and adversely affects the native species.
African catfish is also an alien species which adversely affects the growth of indigenous Clarias batrachus - our local species.
Lantana camara, another alien species, is also strongly competing with native species.
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Question Text
Which of the following statements is correct?
Updated OnAug 7, 2022
TopicBiodiversity and Conservation
SubjectBiology
ClassClass 12
Answer TypeText solution:1 Video solution: 1
Upvotes209
Avg. Video Duration5 min