In Galapagos Islands, Darwin observed variations in structure in ………
A) Elephants
B) Giraffes
C) Rats
D) Finch birds
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‘Origin of species” was written by A) Lamarck B) Charles Darwin
B) Charles Darwin
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Why dispersion of light is not observed in glass slab but it is observed in prism?
When a light passes from one medium to another, at one interface, it changes its speed. The glass slab and prism both have two glass air interfaces. Hence, the light undergoes refraction...
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Darwin observed the variations in Finch birds ……………
D) Galapagos Islands
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If you need to prepare a report on Darwin’s Finches, which of the following important points you would choose to summerise ?
C) Organisms of the same species adapt to their surroundings based on the food source.
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Explain the variations in effective nuclear charge. i. Across a period ii. Down a group
i. Across a period: As we move across a period, atomic number increases by one and thus, actual nuclear charge (Z) increases by +1 at a time. However, the valence shell remains...
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Which of the following statements is incorrect with respect to variations ?
A) All variations in a species have equal chance of survival
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Weak deer cannot live long in a forest according to Darwin’s principle. What concept does it show ?
D) Survival of the fittest
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Travelling by the ship HMS Beagle Charles Darwin landed on one of these islands.
(C) Galapagos islands
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The scientist who also proposed like Darwin that the new organisms formed due to the natural selection.
(B) A. R. Wallace
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Match the items of first line with second line. First line : 1. Charles Elton 2. Charles Darwin
(A) 1 – b, 2 – c 3 – a
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