Just need 1 & 2. Don\'t need to do what is crossed out. Understanding the Seédle

Question

Just need 1 & 2. Don't need to do what is crossed out.

Understanding the Seédless Vascular Plants 22 REVIEW 1complete the following table. tycophyta phenophyta Psilotophyta Pterophyta Example organtsms Support system Anchoring structures Transport system Type of transport tissue External structures Reproduction 2 Which of the following characteristics are representative of seedless vascular plants? (Crcle the correct answer) a. The sporophyte generation is dominant, and they have specialized tissues for conducting water and nutrients a n y hane throughout the plant. b. They have true roots, stems, and leaves, and reproduce by means of spores. c. They have waxy cuticles (for protection against desiccation) and stomata (for gas exchange) d. Both a and b. e. All of the above.

Explanation / Answer

Psilotum,Club mosses, spike mosses,ferns

conduction system

2) characteristic of seedless vascular plant : true roots, stems, and leaves. The sperm are flagellated and require water for reproduction. They have a waxy cuticle to prevent water loss.The sporophyte is the dominant stage in this division of plants. Seedless vascular plants do not produce seeds, cones or flowers.

all of the above :characteristic of seedless vascular plant .

Lycophyta Pterophyta organism example Selaginella,Ferns, whisk ferns, horsetails.

Psilotum,Club mosses, spike mosses,ferns

support system rhizoidal system vascular system anchoring structure conelike structures called strobili, tight aggregations of sporophylls psilophyte stem lacks roots; anchored instead by a horizontally creeping stem called a rhizome transport system vascular system

conduction system

types of transport tissue Xylem and phloem form the vascular system of plants to transport water and other substances throughout the plant. They have xylem and phloem which are transport tissues. Xylem transports water upwards from roots to leaves. external structure The leaves of the Lycophyta each have a single unbranched vein, or strand of vascular tissue, which supplies the leaf with water and distributes manufactured nutrients to other portions of the plant. height may change in plants only 1–1.2 cm (0.39–0.47 inch) tall to huge tree ferns10 to 25 metres (30 to 80 feet) in height. reproduction The dominant generation in lycophytes is the sporophyte generation which produces spores for reproduction.or wind-pollinated sexual reproduction is done by spores.

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