Question

The author discusses Mayr, Ehrlich and Raven to demonstrate that

• A. evolution is a sensitive and controversial topic.
• B. Ehrlich and Raven's ideas about evolutionary divergence are widely accepted by scientists.
• C. the causes of speciation are debated by scientists.
• D. checkerspot butterflies offer the best example of Ehrlich and Raven's ideas about speciation.

Answer 1

The correct option is C

the causes of speciation are debated by scientists.

The author mentions all the three scientists to show the healthy debate that is happening around species segregation. This is given in option (3).