CHIKV has recently re-emerged causing millions of infections in countries around the Indian Ocean characterized by climate conditions favourable to high vector density. Importation of human cases to European regions with high density of suitable arthropod vectors (such as A. albopictus) may trigger autochthonous outbreaks. The clinical signs of CHIKV infection include non-specific flu-like symptoms‚ and a characteristic rash accompanied by joint pain that may last for a long time after the resolution
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History of evolutionary thoughtFurther information: History of evolutionary thought The proposal that one type of animal could descend from an animal of another type goes back to some of the first pre-Socratic Greek philosophers‚ such as Anaximander and Empedocles.[11][12] Such proposals survived into Roman times. The poet and philosopher Lucretius followed Empedocles in his masterwork De Rerum Natura.[13][14] In contrast to these materialistic views‚ Aristotle understood all natural things‚ not
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Campbell’s Biology‚ 9e (Reece et al.) Chapter 31 Fungi Though fungal divisions have traditionally been based on modes of sexual reproduction‚ molecular considerations are becoming more important. Consequently‚ no emphasis has been placed on the vagaries of sexual and asexual reproduction among various fungi in this Test Bank. Instead‚ new questions assess students’ abilities to think logically about fungal morphology‚ genetics‚ and ecology. Two new sets of scenario questions deal with the biology
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Cell Structure - Cell Organelles 1. What is cell theory? Cell theory asserts that the cell is the constituent unit of living beings. Before the discovery of the cell‚ it was not recognized that living beings were made of building blocks like cells. The cell theory is one of the basic theories of Biology. 2. Are there living beings without cells? Viruses are considered the only living beings that do not have cells. Viruses are constituted by genetic material (DNA or RNA) enwrapped by a protein
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iThis is a guide. You will find it very helpful‚ but it does not contain everything that has been covered and could be asked on the exam. I can and will pull questions out of the textbook‚ so make sure you’ve been reading. Go back through the homework assignments and feel free to use the practice tests on Mastering Biology as well. Chapter 14 – Evolution of Evolutionary Thought Definitions : uniformitarianism: Earth’s present landscape was produced by past action of the same geological processes
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Polysaccharides The polymers of sugars having storage and structural roles Starch is a polysaccharides of plants’ storage Glycogen is the storage for animals Cellulose is the cell wall of plants structure Chitin is a structural polysaccharide in arthropods Lipids Do not for polymers Hydrophobic because consist of mostly hydrocarbons Most important lipids are fats‚ phospholipids and steroids Fats Made up of glycerol and fatty acids Glycerol is a 3 carbon alcohol with a hydroxyl group A
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ADVANTAGES OF BIODIVERSITY By adopting a different‚ more positive‚ and more proactive approach to the challenges that environmental issues pose‚ Indian enterprises will greatly benefit in this millennium. The prevalent attitude today‚ with some exceptions‚ is that environmental concerns impose costs that are best avoided. This is natural since these are costs which can fairly readily be externalised and imposed on somebody else. Thus‚ when industrial effluents render river water unfit for drinking
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Biodiversity is the degree of variation of life forms within a given ecosystem‚ biome‚ or an entire planet. Biodiversity is a measure of the health of ecosystems. Greater biodiversity implies greater health. Biodiversity is in part a function of climate. In terrestrial habitats‚ tropical regions are typically rich whereas polar regions support fewer species. Rapid environmental changes typically cause extinctions. One estimate is that less than 1% of the species that have existed on Earth are extant
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THE HISTORY OF EARTH NATIONAL GEOGRAPHIC By: Juni Haryanto (B1034131008) Muhammad Ridwan (B1034131006) Erwinsyah (B1034131010) Background Earth is the third planet in the solar system‚ earth has been created since 4.54 billion years ago. Every planet in the solar system it is only earth that we know have living creature inside because the condition of earth is the most possible place for living creature can live inside in the planet. The first life creature live in earth is about 3.8 until 3
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group related to freshwater shrimp. Daphnia acquired is common name due to the erratic movements. Daphnia are small crustaceans that are also daphnids. These water fleas (as they are commonly referred as) closely resemble household fleas. Being arthropods‚ both share ancestry. Daphnids collect particles floating in water such as phytoplankton‚ vegetation and decaying organic material. These creatures reproduce by parthenogenicty or asexually. The offspring are identical to the parents and any difference
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