MEDIUM
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Who is known for the Stanford prison experiment that studied the psychological effects of perceived power?

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Important Questions on Atoms

EASY

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action?

(a) Darwin’s Finches of Galapagos islands.
(b) Herbicide resistant weeds.
(c) Drug resistant eukaryotes.
(d) Man-created breeds of domesticated animals like dogs.

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Which one of the following are analogous structures?
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Organic compounds first evolved in earth required for origin of life were :
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Statement I: Organs which have similar structure and origin but perform different functions are called analogous organs.
Statement II : The sudden appearance of some vestigial organs in a better developed condition is called atavism

The correct option among the following is

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Darwin's theory is based on
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Convergent evolution is illustrated by ___.
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The ________ theory attempts to explain to us the origin of the universe.
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Which of the following does not show divergent evolution?
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Analogous structures are a result of:
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Which of the following structures is homologous to the wing of a bird?
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In Bougainvillea and Cucurbita, the axillary bud is modified into thorn and tendril respectively. This is an example of
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Descent of man & selection in relation to sex was written by ___.
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Which of the following is an example of convergent evolution?
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Flippers of Penguins and Dolphins are examples of
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Match List-I with List-II.

List-I List-II
(a) Adaptive radiation (i) Selection of resistant varieties due to excessive use of herbicides and pesticides
(b) Convergent evolution (ii) Bones of forelimbs in Man and Whale
(c) Divergent evolution (iii) Wings of Butterfly and Bird
(d) Evolution by anthropogenic action (iv) Darwin Finches
EASY
An electron moves on a straight line path XY as shown. The abcd is a coil adjacent to the path of electron. What will be the direction of current, if any, induced in the coil?

Question Image
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The similarity of bone structure in the forelimbs of many vertebrates is an example of:
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The wings of a bird and the wings of an insect are:
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The idea of survival of the fittest was proposed by
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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?