Today’s Agenda… 3-20 Bellringer: Earth’s Structure BrainPop

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Presentation transcript:

Today’s Agenda… 3-20 Bellringer: Earth’s Structure BrainPop Review Plants Notes on Seedless Plants – Study Pack #2

Seedless Plants Study Pack #2

Today’s Goals… I can compare and contrast seedless nonvascular plants and seedless vascular plants. I can identify the importance of some nonvascular and vascular plants.

Mosses and Liverworts Small Live on bark, rocks, and soil No vascular system Must live in places that are wet No true roots, stems, or leaves

Mosses

Liverworts

Mosses and Liverworts Live together in large groups Covering soil or rocks in a mat of tiny green plants Each moss has rhizoids (root-like structures) Rhizoids help anchor the plant

Importance of Mosses and Liverworts: Usually the first plants to inhabit a new environment. Form a thin layer of soil when they die. They help hold the soil in place which prevents erosion. Nesting material for birds. Peat moss can be burned as fuel.

Ferns, Horsetails, and Club Mosses: Grow tall Have vascular systems

Ferns

Ferns Can grow almost anywhere. Have an underground stem called a rhizome. Leaves are called fronds.

Horsetails

Horsetails Small vascular plants. Grow less than 1.3 meters tall. Grow in wet, marshy places. Stems are hollow and contain cilia. Pioneers used them to scrub pots and pans.

Club Mosses 25 cm tall. Grow in woodlands. Unlike other mosses, they have vascular tissue.

Importance of Seedless Vascular Plants Help form soil when they die. Also hold soil in place to prevent erosion. Ferns serve as house plants. Some are cooked and eaten. Formed coal.

Homework Worksheet