Chapter 13: Meiosis and Sexual Life Cycles
 Concept 13.1  Offspring acquire genes from parents by inheriting chromosomes 	13.01
 Concept 13.2  Fertilization and meiosis alternate in sexual life cycles 	13.02
 Concept 13.3  Meiosis reduces the number of chromosome sets from diploid to haploid	13.03
 Concept 13.4  Genetic variation produced in sexual life cycles contributes to evolution	13.04
Activity: Asexual and Sexual Life Cycles	13&A
Activity: Meiosis Animation	13&B
Activity: Origins of Genetic Variation	13&C
Investigation: How Can the Frequency of Crossing Over Be Estimated?	13&A
Video: Hydra Budding	HydraBudding-V.html=HydraBudding-V.swf
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Chap540,,1708199-content,00.htmlEcosystems
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