today’s agenda… no bellringer or flashback review unit tests discuss homework for this...
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Today’s Agenda…Today’s Agenda…
No bellringer or flashbackNo bellringer or flashback Review Unit TestsReview Unit Tests Discuss homework for this weekendDiscuss homework for this weekend Review packet from yesterdayReview packet from yesterday Notes on Seedless PlantsNotes on Seedless Plants
Today’s Goals…Today’s Goals…
I can compare and contrast seedless I can compare and contrast seedless nonvascular plants and seedless nonvascular plants and seedless vascular plants.vascular plants.
I can identify the importance of some I can identify the importance of some nonvascular and vascular plants.nonvascular and vascular plants.
Mosses and LiverwortsMosses and Liverworts SmallSmall Live on bark, rocks Live on bark, rocks
and soil and soil No vascular systemNo vascular system Must live in places that Must live in places that
are wet are wet No true roots, stems, No true roots, stems,
or leaves or leaves
Mosses and LiverwortsMosses and Liverworts
Live together in large groupsLive together in large groups Covering soil or rocks in a mat of Covering soil or rocks in a mat of
tiny green plantstiny green plants Each moss has Each moss has rhizoidsrhizoids (root- (root-
like structures)like structures) RhizoidsRhizoids help anchor the plant help anchor the plant
Importance of Mosses Importance of Mosses and Liverworts:and Liverworts:
Usually the first plants to inhabit a new Usually the first plants to inhabit a new environmentenvironment
Form a thin layer of soil when they dieForm a thin layer of soil when they die Help hold the soil in place which prevents Help hold the soil in place which prevents
erosionerosion Nesting material for birdsNesting material for birds Peat moss can be burned as fuelPeat moss can be burned as fuel
Ferns, Horsetails, and Ferns, Horsetails, and Club Mosses:Club Mosses:
Grow tallGrow tall Have vascular Have vascular
systemssystems
FernsFerns
Can grow almost Can grow almost anywhere.anywhere.
Have an Have an underground stem underground stem called a called a rhizome.rhizome.
Leaves are called Leaves are called frondsfronds..
HorsetailsHorsetails
Small vascular plants.Small vascular plants. Grow less than 1.3 meters tall.Grow less than 1.3 meters tall. Grow in wet, marshy places.Grow in wet, marshy places. Stems are hollow and contain cilia.Stems are hollow and contain cilia. Pioneers used them to scrub pots Pioneers used them to scrub pots
and pans.and pans.
Club MossesClub Mosses
25 cm tall.25 cm tall. Grow in Grow in
woodlands.woodlands. Unlike other Unlike other
mosses, they mosses, they have vascular have vascular tissue.tissue.
Importance of Seedless Importance of Seedless Vascular PlantsVascular Plants
Help form soil when they die.Help form soil when they die. Also hold soil in place to prevent Also hold soil in place to prevent
erosion.erosion. Ferns serve as house plants.Ferns serve as house plants. Some are cooked and eaten.Some are cooked and eaten. Formed coal.Formed coal.