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Biology, X

  1. How does the creation of variations in a species promote survival ?
  2. How do Medel’s experiments show that traits may be dominant or recessive ?
  3. How do Mendel’s experiments show that traits are inherited independently ?
  4. How is the sex of the child determined independently ?
  5. What are the different ways in which individuals with a particular trait may increase in a population ?
  6. Why are traits acquired during the life time of an individual not inherited ?
  7. What factors could lead to the rise of a new species ?
  8. Give an example of charecteristics being used to determine how close two species are in evolutionary terms ?
  9. Can the wing of a butterfly and the wing of a bat be considered homologous organs ?

Why or why not ?

  1. What are fossils ? What do they tell us about the process of evolution ?

Answer all the exercise questions also – Page 159


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