What is meant by mean by Darwins descent with modification i
     What is meant by mean by Darwin\'s descent with modification in Darwin\'s theory of evolution by natural selection? Select all that apply.  species share common ancestry  species change over time  the major force of evolution is natural selection  Which of the following creates the heritable variation seen in populations? Select all that apply.  mutations in germline cells  independent assortment and recombination during meiosis  natural selection 
  
  Solution
Answer 21 descent of modification states that species are derived from common ancestors thus all species share common ancestry, species change over time (however, variably) and major deriving force is natural selection. thus, all are correct.
Answer 22 all are correct. mutations in germline or recombination process and independent assortment causes change in genotype whih is heritable from one generation to next generation and all these process are driven by natural selection.

