EASY
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

Consider the following statements
1. Hugo de Vries gave the Mutation Theory to explain the mechanism of evolution.
2. Mutations are discontinuous variations also called Saltatory Variation.
3. Mutations are the ultimate source of organic variations.
Which of the statements given above are correct about mutation?

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Important Questions on Biology

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 3>Q 12

Within biological communities, some species are important in determining the ability of a large number of other species to persist in the community. Such species are called

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 3>Q 13
Consider the following statements
1. Homologous organs are common origin with different functions.
2. Analogous organs are different origin but perform similar function in different organisms.
3. Vestigial organs are non-functional and rudimentary organs in an organism which are fully developed and functional in phylogenetically related organisms.
Which of the statements given above are correct?
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 3>Q 14
Select the correct answer.
1. Lung fish
2. Spiny ant eater
3. Tortoise
Which of the organism(s) given above is/are connecting links?
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 3>Q 15
With reference to the evolution of living organisms, which one of the following sequences is correct?
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 3>Q 16
Consider the following statements
1. The early atmosphere was reducing (without free oxygen) comprising water vapor, hydrogen, ammonia, and methane.
2. The most essential criterion for the origin of life is the presence of water.
3. Life originated from complex organic molecules formed from early atmospheric gases reacting with water to form the so-called Haldane's hot dilute soup.
Which of the statement(s) given above is/are true? 
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 3>Q 17
Match List-I and List-II and select the correct answer using the codes given below the lists.
List-I                                                                    List-II
A. Cosmozoic theory                                              1. Richter
B. Theory of inheritance of acquired characters    2. Lamarck
C. Theory of biogenesis                                          3. Darwin
D, Theory of natural natural                                     4. Redi, Spallazani and Pasteur
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 3>Q 18

In the context of organic evolution, the loss of limbs in snakes is explained by the phenomenon of:

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 3>Q 19
Study the following statements
1. Paleontology is the study of fossils, which are the remnants and impressions of extinct organisms preserved in sedimentary rocks.
2. Petrification is a kind of fossil in which parts like bones, shells, teeth are preserved.
3. 25,000 years old frozen mammoths were found in Siberia, buried in ice.
4. The radioactive carbon dating method was introduced by Libby.
Which of the statements given above are correct?