Crush AP Bio Unit 7: Evolution

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AP Bio Unit 7 is the biggest unit in AP Bio, and questions related to Unit 7 have a big representation on the AP Bio exam. In this video, you’ll learn what you need to know to crush it on evolution-related questions on the AP Bio test, or on your upcoming test on AP Bio Unit 7.

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📒 AP Bio Unit 7 Outline📒
00:00 Introduction
01:20 Natural Selection
01:44 Artificial Selection
03:10 How Natural Selection Creates Adaptations
04:29 Sexual Selection
06:03 Comparing Directions, Stabilizing, and Disruptive Selection
07:09 What is adaptive melanism?
08:13 What is evolutionary fitness?
08:57 How does the peppered moth serve as evidence of evolution
11:53 Population genetics basic concepts: allele frequencies and gene pools
12:51 What’s the biggest population genetics misconception by AP Biology students?
13:37 What are the Hardy-Weinberg equations (and how to use them)?
15:52 What is the Hardy-Weinberg principle? Includes founder effect, population bottleneck and gene flow
20:13 How can the frequency of sickle cell disease be explained by heterozygote advantage?
22:14 Evidence for evolution
22:18 What are homologous features?
23:59 What are vestigial features?
24:42 What are analogous features (convergent evolution)?
26:21 What are molecular homologies?
27:19 What are pseudogenes?
29:16 What are the common features shared by all living things?
30:37 How does embryology provide evidence for evolution?
33:59 What is biogeography, and how does it provide evidence for evolution?
35:59 How do fossils provide evidence for evolution?
39:23 How does the evolution of resistance genes provide evidence for evolution?
41:58 Speciation
42:03 What is the biological species concept?
43:10 Describe prezygotic and postzygotic reproductive isolating mechanisms?
45:48 How is allopatric speciation different from sympatric speciation?
49:22 What is adaptive radiation, and how is it related to the pattern of speciation?
50:32 Explain the importance of variation in populations
56:06 Compare background level extinctions with mass extinctions
01:00:53 Phylogeny (clades and nodes)
01:03:05 What AP Bio students must know about shared derived features and ancestral features
01:04:58 What is an outgroup (in phylogeny)?
01:08:40 What is a molecular clock?
01:09:57 What do AP Bio students need to know about the origin of life?
01:13:16 The Miller-Urey experiment and the abiotic emergence of monomers
01:16:25 What do AP Bio students need to know about the RNA world, and why RNA was probably the first molecule of heredity


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