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chapter 20 (9 phyla classify plants (pterophyta (seedless, 2 (fern)),…
chapter 20
9 phyla classify plants
pterophyta
seedless, 2
fern
cycadophyta
seed, 2
cycad
lycophyta
seedless, 2
clubmoss
ginkogophyta
seed, 2
ginko
bryophyta
seedless, 1
moss
coniferophyta
seed, 2
conifers
anthocerophyta
seedless, 1
hornworts
anthophyta
seed, 2
angiosperm flowering plants
hepatophyta
seedless, 1
liverwort
4 main groups
2-ferns and relatives
3-gymnosperms(cones)
1-mosses and relatives
4-angiosperm(flower/fruit)
gymnosperm
do not have seed enclosed in fruit
most are cone bearing and evergreens
cone is reproductive of gymnosperm
vascular system
adaptations
vascular system and lingin
water up and sugar down
brings water up
disperse sugars down from lignin
lignin hardens cell wall of some tissue
specialized tissue
challange
want to grow but cant get water to tall parts
seedless, nonvascular plants
grow close to ground
rely on free standing water to reproduce
absorbs water and nutrients from ground
types of plants
1 = nonvascular
it is short
doesn't have vascular system
2 = vascular
has a vascular system
can grow tall
seedless vascular plants
vascular system allows more growth
needs free standing water to reproduce
seed vascular plants
cone bearing and flowering plants
reproduce without free standing water