EEMB 136L Lecture 16: Lab 16
15 Nov 2017
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Document Summary
Key developments that allowed land plants to overcome obstacles like desiccation, nutrient transport, reproduction out of an aqueous system. Transport nutrients and water from the sediments into plant. Thin outgrowths of the plant"s epidermis that anchor the plant and facilitate water and nutrient absorption. Help deliver water and nutrients to every living cell of the plant. Responsible for transport of water and dissolved minerals. Cells are impregnated with lignin, a rigid organic material that moves water. Stomata pores that may be opened or closed. Allowed for gas exchange while still avoiding eater loss. All that we look at today are sporophyte. The less the fossil has been metamorphosed( ), the greater the fossil detail preserved, and the lower the energy output when burned. Peat-> lignite-> bituminous coal-> anthracite coal (when little of the original plant material can be recognized) Sporangia at the end of stems lack roots and have non-vascular rhizoids instead.
