Bio 101 Chapter 1 Diversity of Life 3 Domains / 6 Kingdoms Archaea / Archaea Bacteria / Bacteria Eukarya / Protista‚ Plantae‚ Fungi‚ Animalia Kingdom Archaea: Prokaryotes; Ancient Bacteria Kingdom Bacteria: Prokaryotes; Common Bacteria Kingdom Protista Eukaryotes; Unicellular organisms (small) Algae (unicellular‚ colonial‚ small or multicellular‚ Large) Kingdom Fungi Eukaryotes; Non-photosynthetic‚ multicellular (except yeast)‚ External
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Life on Earth. 1. Analysis of the oldest sedimentary rocks provides evidence for the origin of life. * Identify the relationship between the conditions on early Earth and the origin of organic molecules. * Scientists estimate that the universe is 10-20 billion years old and arose as a big bang‚ which is still expanding the universe. * The early Earth was very different from the Earth today and no oxygen was present. This means that there was no ozone layer exposing the Earth’s surface
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eventually evolved into three different cell types‚ each representing a domain. The three domains are the Archaea‚ theBacteria‚ and the Eukarya. More recently various fusion hypotheses have begun to dominate the literature. One proposes that the diploid or 2N nature of the eukaryotic genome occurred after the fusion of two haploid or 1N prokaryotic cells. Others propose that the domains Archaea and Eukarya emerged from a common archaeal-eukaryotic ancestor that itself emerged from a member of the
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in almost any environment including some very extreme and severe conditions. These bacteria and Archaea are referred to as extremophiles. You can get halophiles like your Streptococci that live in extremely salty conditions‚ thermophiles like Cyanidium caldarium that like in conditions above 60°C and many‚ many‚ more. In this report‚ I would like to focus specifically on barophiles‚ bacteria and Archaea that live in conditions with extremely high pressures‚ for instance: at the bottom of the ocean
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Protista‚ Fungi‚ and Monera‚ four of the five kingdoms were placed in the same domain- Eukarya. The one remaining kingdom was separated into two domains- Bacteria and Archaea. This separation was unusual as it was previously thought that Bacteria and Archaea were closely related‚ as they were both prokaryotic. It is now thought that Archaea is more closely related to Eukarya than it is to Bacteria. B. Recommendations to adopt this new three-domain taxonomic system were based on evidence more detailed
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Thermophiles are micro-organisms that live and grow in extremely hot environments. They are a type of extremophile (an organism that thrives in physically or geochemically extreme conditions). They can be grouped into procaryotes‚ and are classified in Archaea. They thrive at high temperatures‚ between 45˚C and 122˚C. Thermophiles are usually found in various geothermally heated regions of the Earth‚ such as hot springs like those in Yellowstone National Park and deep sea hydrothermal vents. They also
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Plants‚ also called green plants‚ are multicellular eukaryotes of the kingdom Plantae. They form a clade that includes the flowering plants‚ conifers and other gymnosperms‚ ferns‚ clubmosses‚ hornworts‚ liverworts‚ mosses and the green algae. In biology‚ kingdom (Latin: regnum‚ pl. regna) is the second highest taxonomic rank below domain. Kingdoms are divided into smaller groups called phyla. Traditionally‚ textbooks from the United States used a system of six kingdoms. A fungus (/ˈfʌŋɡəs/; plural:
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contain many eukaryotic features indicates their separation occurred after the eubacteria and thereby establishes greater kinship between archaebacteria and eukarya. Archaebacteria are established as a midpoint between eubacteria and eukaraya. The Archaea are a group of single-celled microorganisms. A single individual or species from this domain is called an archaeon .They have no cel‚l nucleus
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Domain System ‚ groups organisms primarily based on differences in ribosomal RNA structure. Ribosomal RNA is a molecular building block for ribosomes . Under this system‚ organisms are classified into three domains and six kingdoms . The domains are Archaea‚ Bacteria‚ and Eukarya. The kingdoms are Archaebacteria (ancient bacteria)‚ Eubacteria (true bacteria)‚ Protista‚ Fungi‚ Plantae‚ and Animalia. The system used for classifying organisms change due to new discoveries being constantly made making some
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Archaebacteria Description: Archaea are a group of microscopic organisms that are single-celled prokaryotes. They can exist in extreme conditions‚ such as extremely hot‚ acidic‚ or alkaline environments and are not reliant on any one source energy. Some archaebacteria sustain themselves by consuming hydrogen gas or metal ions‚ however other archaebacteria live inside more complex organisms. Divergent Event: Aechaebacteria have a long evolutionary line‚ which makes it difficult for experts to
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