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 ___________

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

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 _________.

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 ________

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 ___________

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

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 ___________

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