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Sperm (n) Egg (n) Spores (n) Zygote (2n) Haploid (n) Diploid (2n) Multicellular gametophyte (n) Green Algae (Charales) nonvascular haploid dominant homosporous motile gametes seedless water dependent sporophyte
Egg (n) Zygote (2n) Spore (n) Mature gametophyte (n) Mature gametophyte (n) Developing sporophyte Developing gametophyte Mosses nonvascular (mostly) haploid dominant homosporous motile gametes seedless Simple, unbranched sporophyte dependent on gametophyte. See Fig 29.16
Ferns vascular diploid dominant homosporous motile gametes seedless Branched sporophyte not dependent on gametophyte at maturity. reduced, naked... Fig. 29.23
Gymnosperms vascular diploid dominant heterosporous nonmotile gametes naked seeds not water dependent
Angiosperms vascular diploid dominant heterosporous nonmotile gametes seeds not water dependent
Reproduction in living organisms (other organisms … not you) (that topic is covered in health class)
PLANT DIVERSITY I.
Life Cycle And History of Plants
Introduction Plantae (Seedless) Liverworts Hornworts Mosses Nonvascular Fern Whisk fern Horsetail Club mosses Vascular.
Biology 11. Transition onto Land Advantages of living in the water included… 1.Prevents drying out. 2.Gives structural support (less affected by gravity)
I can: compare and contrast the moss and fern life cycle
Fig. 17-0c Diversity of plant life Charophytes (algae) Extinct seedless plants (origin of fossil fuels) Simple mosses Dry land adaptations.
Plant Reproduction (Terrestrial) –nonvascular > vascular, –haploid dominant > diploid dominant, –homosporous > heterosporous, –motile gametes > nonmotile.
Plant life cycles alternate between producing spores and gametes.
Moss & Fern Sphagnum palustre Hapu’u Tree Fern
Plant Diversity and Life Cycles
Introduction to Plants
The 3 Main Criteria for determining if an organism is a plant: Multicellular (have many cells) Autotrophic (make their own food) Eukaryotic (have membrane.
Plants I Chapters 29. What you need to know! Why land plants are thought to have evolved from green algae. Why land plants are thought to have evolved.
Do Now: Lengthwise growth of a root tip into the soil results mainly from… Cone bearing plants are known as… Which of the following statements about bryophyta.
Plantae. General characteristics multicellular eukaryotes cell walls made of cellulose carry out photosynthesis.
Plant Reproduction AP Biology Unit 5 Bryophyte (Moss) Life Cycle Nonvascular Plant The gametophyte is the dominant form – Dominant form = the “plant”
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