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Kingdoms of Living Things Bacteria • • • • Prokaryotes Unicellular Autotrophic or heterotrophic 2 Domains of bacteria *Domain Archaea • Kingdom Archaebacteria—live in harsh places, such as geysers, glaciers, undersea volcanoes *Domain Bacteria • Kingdom Eubacteria—live almost everywhere else (ubiquitous) -Can be symbiotic—live in/with another organism -Most are very helpful! Some are pathogenic—cause disease. Strep bacteria Staph bacteria 3 Common bacterial shapes: Spherical—called coccus Rod-shaped—called bacillus Spiral-shaped—called spirillum Spherical Bacteria Rod-shaped Bacteria Spiral Bacteria Bacterial Reproduction • Binary fission— asexual method similar to mitosis • Conjugation— “sexual” method; swapping of DNA through a sex pilus Domain Eukarya All eukaryotes Kingdom Protista/Protists • Eukaryotes • Autotrophic or heterotrophic • Mostly unicellular • Live in aquatic or moist places • Can be animallike, plant-like, or fungus-like Paramecium Euglena Amoeba Most protists are free-living, but some are parasites, causing such diseases as malaria and Giardia. Protist Reproduction • Binary or Multiple Fission—asexual • Fragmentation—asexual—part of an individual breaks off and becomes a new individual • Budding—asexual—a growth falls off and becomes a new individual • Sexual methods: conjugation, sex cell formation Kingdom Fungi • • • • Eukaryotes Heterotrophic Mostly multicellular Live in moist, dark places Fungi: • Decompose food by extracellular digestion—digest food around them, then absorb it • Decomposers are also called saprophytes or saprobes. • Fungi have cell walls made of chitin. • Fungi examples include: yeast (budding) mushrooms morels bracket fungi puffballs A few fungi can be parasitic, such as the one that causes ringworm. Fungi Reproduction • Budding—in yeast—asexual • Fragmentation—asexual • Spores—asexual • Sexual—two types of hyphae (+ and – ) fuse Use Plant PP and Animal PP INSTEAD of the following slides!! Plants • • • • • Eukaryotes Autotrophic Multicellular Stationary Have organs and systems 2 Main groups of plants: 1. Nonvascular—no transport system 2. Vascular—have transport systems Plant examples: moss ferns trees (spruce) flowering plants Animals • • • • • Eukaryotes Heterotrophic Multicellular Can move on their own Have complex organs and systems 2 Main Groups of Animals: 1. Invertebrates—no backbone There are many invertebrate phyla. 2. Vertebrates—have a backbone Vertebrates are classified into Phylum Chordata. Animal examples: earthworms elephants sponges killer whales