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Transcript
A plant that has tissues that move materials from one part of the plant to another. These tissues are vascular tissues. Vascular plants are divided into three sub groups. Seedless plants and two types of seed plants. Seedless vascular plants include ferns, horsetails, and club mosses P 362 A plant that does not have specialized tissues to move water and nutrients through the plant. Nonvascular plants depend on diffusion to move materials from one part of the plant to another. Examples are mosses, liverwarts, and hornwarts. P 362 In this stage plants make spores. In damp soil, many spores may grow. These new plans are called gametohytes. During the gametophyte stage, female gametophytes produce eggs. Male gametophytes produce sperm. For a new plant to be produced, a sperm must fertilize an egg. This type of reproduction is called sexual reproduction. The fertilized egg will eventually grow into an egg. Gymn= naked Nonflowering seed plants are called gymnosperms. P 362 Sperm = seed Angio = vessel These plants are flowering seed plants that produce seeds within the fruit. P 362 1. All plants make there own food and have cuticles, cell walls and a two-stage life cycle. 2. Plants are first classified into two groups: nonvascular plants and vascular plants. Vascular plants are further divided into seedless plants, gymnosperms and angiosperms. 3. Similarities between green algae and plants suggest that they have a common ancestor