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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.

Expert · Level 1 · 2 questions

TOPIC PRACTICE

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  1. The populations can become different enough for speciation
  2. Both populations will immediately become identical
  3. All traits will disappear
  4. All organisms will become fossils
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  1. They can change trait frequencies differently in separated populations
  2. They immediately remove all genes
  3. They directly make acquired traits inherited
  4. They turn fossils into new species

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