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Chapters
2: Human Reproduction
3: Reproductive Health
4: Principles of Inheritance and Variation
5: Molecular Genetics
▶ 6: Evolution
7: Human Health and Diseases
8: Microbes in Human Welfare
9: Applications of Biotechnology
10: Organisms and Populations
11: Biodiversity and its Conservation
12: Environmental Issues
![Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 6 - Evolution - Shaalaa.com](/images/biology-zoology-english-class-12-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 6 - Evolution")
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Solutions for Chapter 6: Evolution
Below listed, you can find solutions for Chapter 6 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Biology (Zoology) [English] Class 12 TN Board.
Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board 6 Evolution Evaluation [Pages 104 - 105]
The first life on earth originated ____________.
in air
on land
in water
on mountain
Who published the book “Origin of species by Natural Selection” in 1859?
Charles Darwin
Lamarck
Weismann
Hugo de Vries
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
The wings of birds and butterflies is an example of ____________.
Adaptive radiation
convergent evolution
divergent evolution
variation
The phenomenon of “Industrial Melanism” demonstrates ____________.
Natural selection
Induced mutation
Reproductive isolation
Geographical isolation
Darwin’s finches are an excellent example of ____________.
connecting links
seasonal migration
adaptive radiation
parasitism
Who proposed the Germplasm theory?
Darwin
August Weismann
Lamarck
Alfred Wallace
The age of fossils can be determined by ____________.
electron microscope
weighing the fossils
carbon dating
analysis of bones
Fossils are generally found in ____________.
igneous rocks
metamorphic rocks
volcanic rocks
sedimentary rocks
Evolutionary history of an organism is called ____________.
ancestry
ontogeny
phylogeny
paleontology
The golden age of reptiles was ____________.
Mesozoic era
Cenozoic era
Paleozoic era
Proterozoic era
Which period was called “Age of fishes”?
Permian
Triassic
Devonian
Ordovician
Modern man belongs to which period?
Quaternary
Cretaceous
Silurian
Cambrian
The Neanderthal man had the brain capacity of ____________.
650 - 800cc
1200cc
900cc
1400cc
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
A population will not exist in Hardly Weiberg equilibrium if ____________.
Individuals mate selectively
There are no mutations
There is no migration
The population is large
List out the major gases that seem to be found in the primitive earth.
Explain the three major categories in which fossilization occurs?
Differentiate between divergent evolution and convergent evolution with one example for each.
How does Hardy-Weinberg’s expression (p2+2pq+q2=1) explain that genetic equilibrium is maintained in a population? List any four factors that can disturb the genetic equilibrium.
Explain how mutations, natural selection and genetic drift affect Hardy Weinberg equilibrium.
How did Darwin explain fitness of organisms?
Mention the main objections to Darwinism.
Taking the example of Peppered moth, explain the action of natural selection. What do you call the above phenomenon?
Darwin's finches and Australian marsupials are suitable examples of adaptive radiation - Justify the statement.
Who disproved Lamarck’s Theory of acquired characters? How?
How does Mutation theory of De Vries differ from Lamarck and Darwin’s view in the origin of new species.
Explain stabilizing, directional and disruptive selection with examples.
Rearrange the descent in human evolution
Austrolopithecus → Homo erectus → Homo sapiens → Ramapithecus → Homo habilis.
How does Neanderthal man differ from the modern man in appearance?
Solutions for 6: Evolution
Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 6 - Evolution
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Concepts covered in Biology (Zoology) [English] Class 12 TN Board chapter 6 Evolution are Geological Time Scale, Theories of Origin of Life, Theories of Biological Evolution, Evidences for Biological Evolution, Theories of Biological Evolution, Hardy Weinberg’s Principle, Organic Evolution, Human Evolution.
Using Samacheer Kalvi Biology (Zoology) [English] Class 12 TN Board solutions Evolution exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Biology (Zoology) [English] Class 12 TN Board students prefer Samacheer Kalvi Textbook Solutions to score more in exams.
Get the free view of Chapter 6, Evolution Biology (Zoology) [English] Class 12 TN Board additional questions for Mathematics Biology (Zoology) [English] Class 12 TN Board Tamil Nadu Board of Secondary Education, and you can use Shaalaa.com to keep it handy for your exam preparation.
