Post on 11-May-2018
transcript
Objec>ves
• Understandthebasicdifferencesbetweenangiospermsandgymnosperms
• Diagramthelifecycleofafloweringplant• Knowthecharacteris>csofflowersassociatedwithspecifictypesofpollinators
• Knowthedifferencesbetweenamonocotandadicot
• Theseeddevelopsfromanovule(enclosedintheovary)
• Theovarybecomesthefruit—so…whenyoueatanapple,youareea>ngtheovaryofthatflower…
Classifica>onofAngiosperms
• AllarecurrentlyinthephylumMagnoliophyta– Dividedintotwolargeclasses:
1. Magnoliopsida(dicotsoreudicots)2. Liliopsida(monocots)
Pollina>onvs.Fer>liza>on
• Pollina>on—Transferofpollengrainsfromananthertoas>gma
• Fer>liza>on—Unionofeggandsperm,maytakedaysaXerpollina>on
Bird-PollinatedFlowerCharacteris>cs
• Redororange• Nectarhiddenbyafloraltube• Li_leornofragrance• Nolandingpla`orm
Bu_erfly-PollinatedFlowerCharacteris>cs
• Blue,yellow,orange• Nectaratthebo_omofthefloraltube• Landingpla`orm
Bat-PollinatedFlowerCharacteris>cs
• Flowersopenatnight• Producealotofnectarandpollen(asareward)
• Whiteorlightcolored• Fragrant—sweetsmelling• Mayhangdownfromthebranches
Bee-PollinatedFlowerCharacteris>cs
• Flowersopenduringtheday• Brightlycolored• Sweetsmellorminty• Landingpla`orm• Symmetrical