12th Standard Syllabus & Materials
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TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
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Published on: 05/11/2020
12th Standard Zoology - Evolution English Medium Free Online Test One Mark Questions 2020 - 2021
Download Tamil Nadu 12th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
According to Darwin, the organic evolution is due to
Intraspecific competition
Interspecific competition
Competition within closely related species.
Reduced feeding efficiency in one species due to the presence of interfering species.
2.
Presence of tail in human baby is an example for ________________
Vestigial organ
Atavism
Homologous organ
Analogous organ
3.
_____________ is called age of Invertebrates
Cambrian
Devonian
Pennsylvanian
Mississippian
4.
Origin of fishes occurred in ___________ period
Devonian
Silurian
Cambrian
Permian
5.
The term biogenesis was coined by
Thomas Huxley
Henry Bastian
Haldane
Weinberg
6.
The solar system is estimated to be ______years old.
4.5 billion years
4 billion years
4.5 billion years
6.4 billion years
7.
8.
The golden age of reptiles was
Mesozoic era
Cenozoic era
Paleozoic era
Proterozoic era
9.
Which of the following was the contribution of Hugo de Vries?
Theory of mutation
Theory of natural Selection
Theory of inheritance of acquired characters
Germplasm theory
10.
The first life on earth originated
in air
on land
in water
on mountain
1.
(b)
Interspecific competition
2.
(b)
Atavism
3.
(a)
Cambrian
4.
(b)
Silurian
5.
(b)
Henry Bastian
6.
(a)
4.5 billion years
7.
(a)
8.
(a)
Mesozoic era
9.
(a)
Theory of mutation
10.
(c)
in water
12th Standard Syllabus & Materials
12th Standard
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TN 12th Computer Applications கணினி வலையமைப்பு ஓர் அறிமுகம் Sample Question Papers Study Material - QB365 Set A
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
