CSS Zoology Questions & Answers

Q.  By illustrating the examples of African giraffe and snakes Lamarck emphasized mainly that:

a. Nature selects the forms which are fittest in the struggle for existence
b. Development and efficiency of body organs are an proportion to their use and disuse
c. Variations (environmental or mutations) are respobsible for process of organic evolution
d. The organisms have enormous fertility leading to over production but their number is always kept constant by the nature


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