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Heredity and Evolution — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHeredity and Evolution3 Marks
Question
Explain the following:
  1. Speciation.
  2. Natural Selection.
✓

Answer

SPECIATION: The process of formation of one or more new species from the existing one by evolutionary means is known as speciation.
NATURAL SELECTION: The process in nature by which, according to Darwin's theory of evolution, only the organisms best adapted to their environment tend to survive and transmit their genetic characteristics in increasing numbers to succeeding generations while those less adapted tend to be eliminated.

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