Which one of the following sequences was proposed by Darwin and Wallace for organic evolution?   

1. Overproduction, variations, constancy of population size, natural selection
2. Variations, constancy of population size, overproduction, natural selection
3. Overproduction, constancy of population size, variations, natural selections
4. Variations, natural selection, overproduction, constancy of population size
Subtopic:  Darwin's Theory | Summary of Darwin's Theory | Concept of Organic Evolution: Evidence |
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Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements

Statements:

(A) Wings of butterflies and birds look alike and are the results of ____(i), evolution
(B) Miller showed that CH4, H2, NH3, and ____(i), when exposed to electric discharge in a flask resulted in the formation of ____(ii).
(C) Vermiform appendix is a ____(i) organ and an ____(ii) evidence pf evolution.
(D) According to Darwin evolution took place due to ____(i)and ____(ii) of the fittest.
 

Options:

1. (A) - (i) convergent, (B) - (ii) oxygen, (ii) nucleosides
2. (B) - (i) water vapour, (ii) amino acids, (C) - (i) rudimentary (ii) anatomical
3. (C) - (i) vestigial, (ii) anatomical, (D) - (i) mutations, (ii) multiplication
4. (D) - (i) small variations, (ii) survival, (A) - (i) convergent

Subtopic:  Darwin's Theory | Summary of Darwin's Theory | Concept of Organic Evolution: Evidence |
 59%
From NCERT
AIPMT - 2010

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