1. 16.2 Applying Darwin’s Ideas
I. Evolution by __________ Selection
A. Individuals with better _______ are more likely to __________.
B. __________ selection = survival of the ___________
C. Darwin’s theory _________ that over time the number of better ________ individuals will ___________

2. D. Steps of Darwin’s Theory
1. ______________
2. ______________
3. ______________
4. ______________

3. E. Selection & Adaptation
1. An __________ is an inherited trait that helps individuals ____________ & _____________
2. each species becomes ________ to its environment due to __________ in it
F. Publication of the theory
1. Darwin’s book On the _________ of __________ by Means of ___________
______________
II. What Darwin Explained
A. Living species evolved from ___________ that lived in the _________.

4. B. ___________
1. ___________ of organisms that lived in the _________
C. Darwin predicted ____________ forms between groups of ___________
D. ___________ that create fossils are so ________ the fossil record will never be _______________
E. _________________
1. The study of the ___________ of organisms around the ________

5. 2. Sometimes ____________ separates _____________
a. Over time the two groups may _______ into different __________
F. _____________ Biology
1. ____________
a. the study of ways that __________ organisms develop from ________
2. Scientists compare embryonic development of species to look for similar ____________ & __________
a. Shows they have a common ___________

6. G. ___________
1. The study of _________ structure
2. __________ similarities show evidence of ___________
a. ex- ________ structure
3. ___________ structures
a. similar structure in two or more species showing a common ancestor
H. ______________
1. Comparing ______ or __________
______ between species shows relation

7. 2. Organisms that have ________ differences are more ________ related
III. Evaluating Darwin’s Ideas
A. Strengths
1. evidence of ____________
a. gathered so much ________
2. mechanism for ____________
a. presented a _________ & ____________ mechanism for process of evolution
3. recognition that ________ is important
a. serves as the start of ___________

8. B. Weaknesses
1. Darwin knew very little about _______
2. Mendel’s ideas that supported his work were not widely ___________ until ______.