Mass Extinction Events: The Causes And Effects Kieran A. F. Burley A mass extinction is defined as an event when there is a massive decrease in the abundance and diversity of all species on the planet‚ this will occur over a relatively short period of time‚ for any one species an extinction is catastrophic. Extinction events occur continually this results in regular change of all species on the planet and is known as background extinctions‚ sometimes however extinction rates rise suddenly for
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Most people are curious if human bodies are similar to other animal parts. Not only Charles Darwin brandished a new perspective of how animals are naturally existent‚ but also opened more questions if humanity is similar to most or all other species. Evolutionarily‚ majority of the animals on this planet have extinct and later evolved into the similar ancestry of an animal with unique features and characteristic. Skeletal‚ muscle and cranial nerve patterns of the common animal are somewhat consistent
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Application of Fluorescence Spectroscopy in Chemical Oceanography: Tracing Colored Dissolved Organic Matter (CDOM) Erika Mae A. Espejo 3rd year‚ BS Chemistry‚ University of the Philippines‚ Diliman Abstract Dissolved organic matter (DOM)‚ the fraction passing through a 0.45 µm membrane filter‚ is considered poorly understood mixture of organic polymers because of its complexity. Although it largely influences a lot of biogeochemical processes in aquatic environments‚ its characterization is not
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Of the many fish of the sea‚ none is more interesting and unique than the seahorse. Seahorses are classified in the phylum Chordata‚ subphylum Vertebrata‚ class Osteichthyes‚ order Gasterosteiformes‚ family Syngnathidae‚ and the genus Hippocampus. The genus name Hippocampus comes from two Greek words; hippos meaning horse and campus meaning monster. Their physical appearance explains why they received their name. They have a horse-like head and a curled tail. They have developed many unique adaptations
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hundred million barrels of oil. Many oil spills have had major impacts on the earth and its inhabitants. Many animals die and some are injured in from oil. Many plants and animals are endangered‚ or are now extinct. Coral reefs‚ fish‚ shellfish‚ plankton‚ sea and shore birds‚ sea mammals‚ shorelines‚ air‚ fresh water system‚ mangroves‚ and soil may be exposed and dramatically affected by oil pollution. The top story in the year 2010 was an oil spill in the Gulf of Mexico. This oil spill began in
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(clays <0.02 mm‚ the fine particles in water sales) and a carbonate is a variety of mudstone. The rocks can be both clastic and chemical-biogenic origin. The carbonate can be washed in as detritus‚ often goes back to the carbonate skeletons of plankton or biochemically precipitated calcite. On the seabed to collect layers of calcite and clay sediments‚ which are becoming more powerful over time and compacted by the weight of younger sediments onlay. Furthermore‚ responding in the sediment pore
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Chlorophyll clip_image002Outline the role of photosynthesis in transforming light energy to chemical energy (including raw materials needed for this process) Photosynthesis occurs in all green plants and is the beginning of nearly all food chains therefore a source of life to all living organisms. It is the process where plants transform light energy from the sun into chemical energy. By using light energy trapped by chlorophyll (light absorbing pigment)‚ plants combine carbon dioxide and
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MIDTERM In order to comment on the carbon footprint of plastic grocery bags during its life cycle‚ I should first explain what does the carbon footprint term stand for‚ I would take the definition given in the textbook of this course‚ "The carbon footprint is the total emissions of CO2‚ more specifically greenhouse gases as CO2‚ equivalent (CO2e)‚ that is generated by individual‚ organization‚ event‚ product or process over its life-cycle". Knowing what the carbon footprint means now‚ I know
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HANDBOOK ON THE ARTIFICIAL REPRODUCTION AND POND REARING OF THE AFRICAN CATFISH CLARIAS GARIEPINUS IN SUB-SAHARAN AFRICA A handbook FAO FISHERIES TECHNICAL PAPER 362 i HANDBOOK ON THE ARTIFICIAL REPRODUCTION AND POND REARING OF THE AFRICAN CATFISH CLARIAS GARIEPINUS IN SUB-SAHARAN AFRICA A Handbook By Gertjan DE GRAAF and Johannes JANSSEN NEFISCO FOUNDATION AMSTERDAM‚ THE NETHERLANDS FAO‚ FISHERIES TECHNICAL PAPER 362 ROME‚ 1996 ii The designation employed and
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Algae are eukaryotic organisms that have no roots‚ stems‚ or leaves but do have chlorophyll and other pigments for carrying outphotosynthesis. Algae can be multicellular or unicellular. Unicellular algae occur most frequently in water‚ especially in plankton. Algae are eukaryotic organisms that have no roots‚ stems‚ or leaves but do have chlorophyll and other pigments for carrying out photosynthesis. Algae can be multicellular or unicellular. Unicellular algae occur most frequently in water‚ especially
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