Natural Selection (Evolution)

Question 1

On the Origin of Species

Answer 1

written by Charles Darwin

thesis of the book: mechanism of evolution is natural selection

Question 2

Natural selection

Answer 2

a process when a genetic trait changes randomly
if the change is beneficial in the reproduction of the next generation, it continues
if the change is not beneficial it would slowly disappear and organism may end up extinct
goes against the idea of earth being young because it is such a slow process

Question 3

Darwin’s language

Answer 3

personifies natural selection

makes natural selection look like a god but was never believed to be

Question 4

Aftermath of on the origin of species

Answer 4

spent the rest of his life defending his theories

biologists believe it was one of the most important books ever written

Question 5

Darwin’s theory about change

Answer 5

so slow that it is almost imperceptable
advantageous changes persist
disadvantageous changes cause the organism to die out
no driving force behind natural selection

Question 6

Fossil records

Answer 6

prove how organisms have changed over time

Question 7

Evolutionary trees

Answer 7

phylogenic trees

explain why similar species exist in same geographical regions