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Science

Evolution and speciation

In this Class 10 Science topic from Heredity and Evolution, students explore how inherited variations accumulate over generations and contribute to the evolution of organisms. They learn how natural selection, environmental changes, and reproductive isolation can lead to the formation of new species, or speciation. The topic also connects fossils, similarities among organisms, and other evidence to the scientific understanding of evolutionary relationships and biodiversity.

Easy · Level 1 · 5 questions

TOPIC PRACTICE

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  1. Speciation
  2. Digestion
  3. Respiration
  4. Excretion
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  1. Different changes can accumulate in separated groups
  2. Isolation makes all organisms the same
  3. Isolation produces food
  4. Isolation removes chromosomes
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  1. Geographical isolation
  2. All organisms becoming identical immediately
  3. Food not being digested
  4. No sweating
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  1. Charles Darwin
  2. Gregor Mendel
  3. Rutherford
  4. Mendeleev
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  1. By accumulating different changes in groups
  2. By making all organisms identical
  3. By digesting food
  4. By stopping sunlight

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