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feldman1 - We will focus in this section on the Eukarya...

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Dr. Feldman s Lecture Outlines - 1 Lecture 1, Introduction/Fungi Linnaeus originally classified all organisms as plants or animals based on contrasting characteristics including: movement versus no apparent movement; eating versus not eating, finite life span versus an apparent unlimited life span. Basic facts for considering life on earth -earth formed 4.3 to 4.5 billion years ago -first life on earth is believed to have appeared 3.5 to 3.8 billion years ago Based on the development of more sophisticated molecular tools the first living organism (the common ancestor) gave rise to three distinct groupings or organisms (lineages) which are the bacteria, the Archaea and the Eukarya
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Unformatted text preview: We will focus in this section on the Eukarya line which includes plants, animals and other organisms, including the fungi. General Characteristics of the Fungi: -Not true plants, but considered with plants for historical reasons -No more closely related to plants than plants are to animals -Basic characteristics: -non-motile filamentous, eukaryotes -absorb nutrients -cell walls contain chitin -life cycle generally involves spores and can be sexual or asexual -heterotropic decomposers -Commercial uses -Lifecycle -Organism comprised of filaments (hypha; pl = hyphae); many hyphae together = myce- lium -monokaryon and dikaryon Dr. Feldman’s Lecture Outlines - 2...
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