TLS Online TPP Program

#Question id: 15717


 In The Origin of Species, Darwin propounded two major hypotheses:

#Unit 11. Evolution and Behavior
  1. that organisms have descended, with modification, from common ancestors; and that the chief cause of modification is natural selection acting on hereditary variation.
  2. that organisms have descended, with modification, from separate ancestors; and that the chief cause of modification is natural selection acting on hereditary variation
  3. “facts” are in some cases simple, confirmed observations; in other cases, a “fact” is a hypothesis that has acquired so much supporting evidence that we act as if it is true.
  4. A body of ideas about the causes of evolution