Lesson 6 Angiosperm Reproduction In-Class Notes.docx - Lesson 6 Angiosperm Reproduction Answer B Sexual o Genetic recombination o Ecologically involved

Lesson 6 Angiosperm Reproduction In-Class Notes.docx -...

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Lesson 6: Angiosperm ReproductionAnswer: BSexual:oGenetic recombinationoEcologically involvedoInsectsoBirdsoMammalsAsexual = vegetativeoFastoEnergetically efficientoClonal spreadApomixes: Pathenogenesis or agamospermy (“seeds without sex”)oAsexual because there is no fertilizationoFormation of an embryo without fertilizationIncrease number of seeds producedoMany examples in nature including common plants such as dandelions
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Vegetative:oFragmentationoStolons or runners horizontal stemsoRhizomesHorizontal underground stemsoTubersModified stem for storageoCorms/bulbsoPlantlets “somatic embryogenesis”oSuckersFrom base of plant stem or rootsAspenOaksoProtoplast RegenerationSexual Reproduction:oFloral structureStamenAnther: microspores and pollen (male spores)FilamentCarpelStigma: pollen receptorStyleOvaryOvulePetal: attract pollinators2
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  • Fall '16
  • Watkinson
  • Biology, Sperm, Reproduction, Pollination, Flowering plant, ovary wall, runners horizontal stems, sex surrogate trickery

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