Evolution
ICSE · Class 10 · Biology
Most important questions from Evolution for ICSE Class 10 Biology board exam 2026. MCQs, short answer, and long answer questions with marks.
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Which of the following are postulates of Darwin's theory of Natural Selection?
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Overproduction of offspring, Struggle for existence, Natural selection, Survival of the fittest
Darwin's theory includes overproduction of offspring, struggle for existence, natural selection, and survival of the fittest. Inheritance of acquired characters is Lamarck's theory, not Darwin's.
The cranial capacity of modern man (Homo sapiens sapiens) is approximately:
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1450 cc
Modern man (Homo sapiens sapiens) has a cranial capacity of about 1450 cc. This is much larger than earlier ancestors like Australopithecus (450-600 cc) or Homo habilis (750 cc).
Which of the following are vestigial organs in humans?
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Vermiform appendix, Wisdom teeth, Coccyx, Muscles of ear pinna
All these are vestigial organs - non-functional remains of organs that were functional in ancestors. Heart is a fully functional organ, not vestigial.
Who discovered the fossil 'Lucy'?
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Donald Johnson
Donald Johnson discovered the fossil 'Lucy' (Australopithecus) in 1976 from Ethiopia. It represents one of our early human ancestors from about a million years ago.
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