Bio ch 31 continued
Bio ch 31 continued BSC 1011C
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This 1 page Class Notes was uploaded by Andrew Faus on Sunday November 1, 2015. The Class Notes belongs to BSC 1011C at University of North Florida taught by Amy Keagy in Fall 2015. Since its upload, it has received 33 views. For similar materials see General Biology II in Biology at University of North Florida.
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Date Created: 11/01/15
Reproduction Sexual vs Asexual Sexual promotes Genetic diversity Asexual quick and efficient form of reproduction that does not require a mate Many have the ability to regenerate broken parts totipotency Totipotent means a single cell can divide and produce all of the differentiated cells in an organism Spores and Zygotes are examples Ex Spider plant google images Notice the lowest hanging parts Stolons these can be cut off and grown into new plants Grafting combining different types of woody plants Below a grafted citrus tree Sexual reproduction General 2n Mature gametophyte gt Archegonia make eggsAntheridia make sperm gt n Fertilization gt Zygote gt embryo gt Mature Sporophyte gt Sporangia gt Meiosis gt Spores gt Mature gametophyte Liverworts These are seen commonly under waterfalls Sperm get splashed out of Gemmae cups and lands on the female leading to reproduction Moss Peristome teeth are a dispersal mechanism they open up and release the spores Ferns and Fern allies Here a shift is observed to a dominant sporophyte phase the gametophyte phase is very rare Sacs cluster together in one area under the leaf this is called a sorus sori for plural The indusium protects the sorus annulus covers sporanigium when it dries out the lip cells open and spores are dispersed