Sabtu, 22 Agustus 2009

Evolution and Life's Diversity

(How and why questions.)
Evolution

Purpose: To focus you on what is significant and draw connections for understanding, which leads to memory and application. ("TURA") Pages 269-283 in "Miller and Levine"

  1. What must replace "belief" in science?




  1. How is evolution defined in simple terms?




  1. Why was Darwin's 5 year voyage so significant ? (lines 16 and 17)




  1. Darwin had an analytical mind. What is meant by this and how did it help Darwin?




  1. Why have so many species disappeared over time?




  1. What is meant by fitness?




  1. Why are there so many different techniques for survival? (Hint: think of ecology.)




  1. Why do you suppose Darwin waited so long before publishing his book "The origin of Species"?




  1. Dawin provided strong evidence that each species is descended from.......




  1. Explain Darwin's Principle of Common Descent.




  1. How did Darwin explain the way fitness arises? (Explain as fully as you can. More will be said at the end of the course.)




  1. How did Darwin's voyage on the Beatle influence his thoughts about life?




  1. How is diversity of life related to evolution?




  1. How is adaption related to fitness?




Similarities In Early Development:
  1. Why are vertebrate embryos so similar in appearance for early stages? (P.283-285)




  1. Why do embryos of different vertebrate species later become more dissimilar?




  1. Why is it critical that genes controlling early development be relatively unchanged?




  1. When are mutations most likely to occur in embryonic cells?




  1. P284 - Explain why a bat's wing is homologous to the front flippers of a whale. (See fig.13-17.)




  1. Why do organisms often carry organs that have little or no function?




  1. How do we get evidence that snakes evolved from lizards? (4-footed ancestors) P.284




Tidak ada komentar:

Posting Komentar