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35:18
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Nancy Fung, M.Ed.
62
19:30
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Eric Smith
61
18:58
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63
22:45
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72
34:11
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Mary Pyo, M.A.
89
58:08
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Dr. William Murray, Ph.D.
23
15:23
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89
58:54
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Prof. Vincent Selhorst-Jones
89
58:54
AP Calculus AB
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66
44:00
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33
8:39
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18
15:04
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Dr. Ji Son, Ph.D.
49
36:33
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44
16:23
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35
30:47
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Dr. Jenny Switkes, Ph.D.
39
15:13
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Dr. William Murray, Ph.D.
23
12:09
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Prof. Raffi Hovasapian
43
23:37
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Prof. Raffi Hovasapian
34
23:32
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Dr. William Murray, Ph.D.
30
26:33
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Physical Science (Middle School)
Summer Ebs, M.Ed.
13
9:36
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24
16:21
Gen. Chemistry
Dr. Harold Goldwhite, Ph.D.
34
35:20
AP Chemistry
Prof. Raffi Hovasapian
70
60:26
Biochemistry
Prof. Raffi Hovasapian
63
46:39
Organic Chemistry
Dr. Laurie Starkey, Ph.D.
42
54:03
Organic Chemistry Lab
Dr. Laurie Starkey, Ph.D.
16
17:07
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Prof. Raffi Hovasapian
93
67:52
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Physics – High School (Theory & Application)
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34
22:46
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92
24:35
AP Physics C: Mechanics
Prof. Dan Fullerton, M.S.
29
15:28
AP Physics C: Electricity & Magnetism
Prof. Dan Fullerton, M.S.
26
14:27
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Dr. Radi Jishi, Ph.D.
35
86:03
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Dr. Radi Jishi, Ph.D.
40
48:11
AP Physics C: Electricity Magnetism
Dr. Radi Jishi, Ph.D.
32
41:08
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Nehlia McIntyre, M.Ed.
34
12:36
Regular Biology
California Regents
69
21:01
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Prof. Bryan Cardella, M.Ed.
27
19:01
General Biology
Prof. Bryan Cardella, M.Ed.
37
24:56
AP Biology
Dr. Carleen Eaton, M.D.
60
55:40
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Prof. Bryan Cardella, M.Ed.
29
23:21
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Dr. Catherine Carpenter, Ph.D.
44
20:01
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Dr. Michael Philips, Ph.D.
14
14:49
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Intro to Psychology
Prof. Michael Wheeler
31
12:04
AP Psychology
Charles Schallhorn, M.Ed.
68
39:04
AP Microeconomics
Prof. Jibin Park
26
16:17
AP Macroeconomics
Prof. Jibin Park
27
16:51
AP US Government
Prof. Jibin Park
21
17:17
AP US History
Prof. Elizabeth Turro
63
48:20
AP World History
Prof. Ronald Schooler
70
37:05
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20
9:14
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30
6:49
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22
11:24
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18
8:36
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16
9:20
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16
12:30
CSS Intro
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23
12:20
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10
5:30
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25
12:34
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10
5:54
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42
22:47
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47
23:43
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59
23:49
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Prof. John Snape
62
26:29
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Prof. Jim Hague, M.S.
33
8:43
WordPress Blogging
Prof. Brenton Strine, M.S.
10
5:14
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Prof. Scott Anderson, M.S.
15
4:34
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25
8:29
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Prof. Jim Hague, M.S.
33
8:43
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Prof. Brenton Strine, M.S.
10
5:14
MATLAB
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28
5:46
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152
22:32
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Prof. Candyce Mairs (Adobe Certified)
132
18:50
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Prof. Michael Brown (Adobe Certified)
59
19:21
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Prof. Candyce Mairs (Adobe Certified)
55
6:55
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Chris Grover
66
6:10
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Prof. Candyce Mairs (Adobe Certified)
52
5:25
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20
7:31
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29
15:25
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15
6:36
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38
4:15
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40
4:55
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43
4:19
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47
15:51
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32
8:55
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28
6:01
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Prof. Joel Gonzaga
32
11:18
Application Essays
Prof. Rebekah Hendershot
10
2:28
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Prof. Rebekah Hendershot
28
6:38
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Prof. Rebekah Hendershot
35
18:14
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Prof. Rebekah Hendershot
17
7:16
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Prof. Joel Gonzaga
29
7:13
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AP Spanish
Prof. Patricia Ponce de Leon
18
9:58
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AP Studio Art 2-D
Jessica Spinella
21
3:46
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Prof. Laura Ryan, M.A.
20
9:31
Music Theory
Prof. Laura Ryan, M.A.
27
10:56
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Dr. Cory Hills
29
7:22
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AP (Advanced Placement)
AP US History
Prof. Elizabeth Turro
63
48:20
AP World History
Prof. Ronald Schooler
70
37:05
AP US Government
Prof. Jibin Park
21
17:17
AP Microeconomics
Prof. Jibin Park
26
16:17
AP Macroeconomics
Prof. Jibin Park
27
16:51
AP Language and Composition
Prof. Rebekah Hendershot
28
6:38
AP English Literature & Composition
Prof. Rebekah Hendershot
35
18:14
AP Studio Art 2-D
Jessica Spinella
21
3:46
AP Spanish
Prof. Patricia Ponce de Leon
18
9:58
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SAT: Overview
Prof. Vincent Selhorst-Jones
25
12:24
SAT: Critical Reading
Prof. Rebekah Hendershot
16
3:18
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Prof. Charlotte Vilkus
29
5:49
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Prof. Rebekah Hendershot
9
2:31
Standardized Math: GRE, ACT, PSAT
Prof. Charlotte Vilkus
26
6:08
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Duration
(hrs:min)
AP (Advanced Placement)
AP Psychology
Charles Schallhorn, M.Ed.
68
39:04
AP Biology
Dr. Carleen Eaton, M.D.
60
55:40
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Prof. Raffi Hovasapian
70
60:26
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Prof. Dan Fullerton, M.S.
92
24:35
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Dr. Radi Jishi, Ph.D.
35
86:03
AP Physics C: Mechanics
Prof. Dan Fullerton, M.S.
29
15:28
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Prof. Dan Fullerton, M.S.
26
14:27
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Dr. Radi Jishi, Ph.D.
40
48:11
AP Physics C: Electricity/Magnetism
Dr. Radi Jishi, Ph.D.
32
41:08
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Prof. Tom Quayle, M.S.
25
12:34
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Prof. Bryan Cardella, M.Ed.
29
23:21
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Prof. Raffi Hovasapian
66
44:00
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Prof. John Zhu, M.B.A.
33
8:39
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Prof. Sandahl Nelson
18
15:04
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Biology Mechanisms of Evolution

Section 4: Evolutionary Biology : Lecture 2 | 19:21 min

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Mechanisms of Evolution

The basis of change in populations, whether it’s a population of spiders, microorganisms, or people, occurs at the level of an organism’s genetic material—its DNA.
The patterns, trends, and rates of change can be evaluated broadly at the level of a species or specifically at the level of an allele.
When a population or a specific trait doesn’t change, it’s at equilibrium. However, this rarely occurs. Forces that elicit change are constantly bombarding any dynamic, living system.

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