EASY
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Fossils are the evidence that support the theory of organic evolution.

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Important Questions on Heredity and Evolution

MEDIUM
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Who proposed the theory of Natural Selection? Mention the two principles of this theory. 
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Write salient features of Darwin's theory of Evolution
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
"Survival of the fittest", explain the statement with the help of Darwin's theory.
EASY
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Describe the salient features of Lamarck's theory of inheritance of acquired characters.
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships

According to the Darwinian theory of natural selection, the rate of appearance of new forms is linked to the life cycle or the life span of an organism. Explain with the help of an example.

MEDIUM
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Give the salient features of the theory of Natural Selection proposed by Charles Darwin.
MEDIUM
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Why coacervates are called primitive cells?
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Differentiate between directional selection and disruptive selection.
MEDIUM
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
What is reproductive fitness? Explain it with the help of an example.
EASY
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Explain industrial melanism.
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Organisms and their organs constantly increase in size., which theory is depicted by the statement?
MEDIUM
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Following are the two statements regarding the origin of life:

(i) The earliest organisms that appeared on the earth were non-green and presumably anaerobes.

(ii) The first autotrophic organisms were the chemoautotrophs that never released oxygen.

Of the above statements which one of the following options is correct?
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships

What is denoted by the given diagram?

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HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
What is organic evolution? Write briefly about any four evidences of organic evolution.
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships

Fill the blanks in Columns A and B using appropriate terms.

Theory Scientists
(a) Theory of natural selection A
(b) Use and Disuse of Organs B
(c) Theory of Mutation C
(d) Theory of spontaneous generation D
EASY
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Describe Darwin's theory of natural selection.
MEDIUM
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
How does the study of fossils help to understand organic evolution? Support your answer with examples.
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Explain the evolution of long neck of giraffe according to Charles Darwin.
MEDIUM
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Which one of the following factors is not included in the 'Modern Synthetic theory' of evolution?
HARD
Science>Biology>Heredity and Evolution>Tracing Evolutionary Relationships
Natural selection means