Essays about: "marina organismer"

Showing result 1 - 5 of 19 essays containing the words marina organismer.

  1. 1. Parapeytoia yunnanensis: The organism that connects the upper stem-group euarthropods

    University essay from Uppsala universitet/Paleobiologi

    Author : Sebastian Axel Cockfield Larsson; [2023]
    Keywords : ;

    Abstract : The study of euarthropod evolution in the Cambrian is challenging due to controversies surrounding the identification of various anatomical features. Radiodontans are supported to be a monophyletic group to the lower stem of euarthropods. READ MORE

  3. 2. Oolites from the Arabian platform: Archives for the aftermath of the end-Triassic mass extinction

    University essay from Lunds universitet/Geologiska institutionen

    Author : Johannes Greiff; [2021]
    Keywords : sedimentology; carbonates; geochemistry; oolites; ooids; thrombolites; microbialites; Triassic; Jurassic; Hettangian; extinction; United Arab Emirates; Wadi Ghalilah; Wadi Milaha; Earth and Environmental Sciences;

    Abstract : The end-Triassic mass extinction (ETME) which occurred around 201 Ma is known as one of “the big five” mass extinction events of the Phanerozoic eon. Its effects were most severe on marine ecosystems, resulting in a global decline of invertebrate taxa and the complete extinction of the conodonts. READ MORE

  4. 3. PlaCo : The plastic collecting robot

    University essay from KTH/Mekatronik

    Author : Annie Persson; Johanna Bergsten; [2021]
    Keywords : Arduino; IR-sensor; marine debris; mechatronics; microplastics; ultrasonic sensor; Arduino; IR-sensor; marin nedskräpning; mekatronik; mikroplaster; ultraljudssensor;

    Abstract : The oceans are an essential global resource for all living organisms but especially for us humans. However, year after year we continue to neglect proper recycling of our waste, resulting in litter ending up in our oceans. The majority of said litter comes from single use plastic items. READ MORE

  5. 4. The content, chemical state and accumulation of vanadium in a drill core of Alum shale from Kinnekulle

    University essay from Lunds universitet/Kemiska institutionen

    Author : Niklas Gunnarsson; [2019]
    Keywords : Alum Shale Formation; Alum shale; Kinnekulle; Vanadium; Inorganic chemistry; Oorganisk kemi; Chemistry;

    Abstract : Exploitation of alum shale is a controversial subject in Sweden due to the history of pollution of the environment and groundwater, from past mining industries. The extraction of vanadium from alum shale is no different. Nevertheless the metal is a valuable resource used in tools, building, industries and aerospace materials. READ MORE

  6. 5. Estimating the Early Evolution of Brachiopods Using an Integrated Approach Combining Genomics and Fossils

    University essay from Uppsala universitet/Paleobiologi

    Author : Chloé Robert; [2019]
    Keywords : Brachiopoda; evolutionary history; phylogeny; Maximum likelihood; Bayesian inference; fossil calibrations; Brachiopoda; evolutionhistoria; fylogeni; Maximum likelihood-metoden; Bayesiansk statistik; fossilkalibering;

    Abstract : The Brachiopoda, a major group of the Lophotrochozoa, experienced a rapid early evolutionary diversification during the well-known Cambrian explosion and subsequently dominated the Palaeozoic benthos with its diversity and abundance. Even though the phylogeny of the Lophotrochozoa is still hotly debated, it is now known that the Brachiopoda are a monophyletic grouping. READ MORE