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plant reproduction

alternation of generations

QuestionAnswer
type of plants that have alternation of generations all plants ( nonvascular and vascular)
type of plants where you can observe the alternation of generations easily ( you can see both generations as separate plants) nonvascular ( mosses) and vascular non-seed or seedless ( ferns and horsetails)
brief description of alternation of generations in plants the sporophyte generation is diploid and produces spores with are haploid... the spores germinate into the gametophyte with is haploid... the gameotophyte generations makes the gametes that unite to form the new sporophyte generation ( a cycle)
a haploid reproductive cell with a protective coat that can form a new organism without the process of fertilization spore
cell division used by plants to produce spores ( the sporophyte is diploid and the spores are haploid) meiosis ( it reduces the chromosome number to half of original... from diploid to haploid)
what gameotophyte looks like in nonvascular plants ( mosses).. what is special about this generation in mosses it looks like a green carpet and is very visible in the mosses ( this is the only type of plant with an obvious gametophyte)
plants use the cell division process of ? to make gametes ... the gametophyte is haploid and the gametes are also haploid ... so it makes identical cells mitosis
what is a special requirement of fertilization in mosses and ferns water
what adaptation allows vascular seed plants to have fertilization without water pollen
When the male and female gametes unite in a plant it produces a/an... is the new organisms haploid or diploid sporophyte .... diploid
what does the sporophyte look like in a nonvascular plant ( mosses) it looks like a brown stalk growing out of the gametophyte .. it has a little capsule at the top that pops open to release spores
What does a sporophyte look like in a vascular seedless plant ( the fern or the horsetail) in a fern it looks like the leaf that we usually see ( the fern fronds).. in the horsetail is it the part you would see in the forest ( be sure to look at a picture of this plant)
What does the gametophyte look like in a fern plant it is very tiny and is heart shaped ( size of fingernail).. you would not see it on a typical walk in the forest
Created by: shemehl
 

 



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