Keystone species are species of animals that other species and the entire ecosystem depend on. Sea otters and elephants both play major roles in their ecosystems‚ as they are both keystone species. Without these two species‚ their ecosystems would have drastic changes in the environment in which many organisms and species would not be able to survive. If the sea otters and elephants were to leave the ecosystem it would cause a domino effect. The domino effect would make other species disappear
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The Amazon is a vast region that spans across eight rapidly developing countries: Brazil‚ Bolivia‚ Peru‚ Ecuador‚ Colombia‚ Venezuela‚ Guyana‚ Suriname and French Guiana‚ an overseas territory of France. The landscape contains: One in ten known species on Earth 1.4 billion acres of dense forests‚ half of the planet ’s remaining tropical forests 4‚100 miles of winding rivers 2.6 million square miles in the Amazon basin‚ about 40 percent of South America There is a clear link between the health
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1. Define ecology. Identify the two features of organisms studied by ecologists. Ecology is the scientific study of the interactions between organisms and the environment‚ which in turn determine both the distribution of organisms and their abundance. Ecologists study how interactions between organisms and the environment affect phenomena such as the number of species living in a particular area‚ cycling of nutrients in a habitat‚ and the growth of populations. 2. Describe the relationship between
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Ecosystems: Change and Challenge The Structure of Ecosystems Ecosystem: a dynamic‚ stable system characterised by the interaction of plants and animals with each other and with the non-living components of the environment The components of an ecosystem are categorised as either biotic and abiotic Biotic means the living environment‚ components include: i). Vegetation (living and decomposing) ii). Mammals‚ insects‚ birds and microorganisms Biomass-the mass of material in the bodies
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Ecology Ecology is the study of interactions between organisms and the living and non-living components of their environment. It involves collecting information about organisms and observing their life patterns as well. Ecology is a science that seeks to explain why patterns occur the way they do. Interdependence is a key component of biology‚ meaning that all the organism interact with one another in various ways. Its very crucial for organisms since they all depend on one another
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information found in this video‚ and in Ch. 5 and 6 of Visualizing Environmental Science‚ answer the following questions in 25 to 100 words each. 1. What are Madagascar’s biomes? Discuss the major features of at least one of these biomes. Use the textbook for biome examples. Madagascar is a tropical rainforest‚ rain forest savanna and grasslands. The rain forest receives 120 inches of rain at least a year. It has very wet and dense vegetation within the trees. Anywhere from 70 plus percent of animal
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is that they are located A biome is a geographically defined area of ecologically similar communities of plants‚ animals‚ and soil organisms‚ often referred to as ecosystems. Biomes are defined based on factors such as plant structures (such as trees‚ shrubs‚ and grasses)‚ leaf types (such as broadleaf and needleleaf)‚ plant spacing (forest‚ woodland‚ savanna)‚ and climate. Unlike ecozonse‚ biomes are not defined by genetic‚ taxonomic‚ or historical similarities. Biomes are
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True/False When an ecologist studies a organism‚ they could be studying a bacteria. 7. Which type of biome (freshwater or marine) is strong influenced by temperature and light? (Circle one) 8. Which zone (aphotic or photic) contains enough light for plant photosynthesis? (Circle one) MATCHING ON THE BACK
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1) Trees are rare in the savanna biome because of A) insufficient annual precipitation. B) acidic soils. C) extreme winter temperatures. D) large variations in seasonal rainfall. E) permafrost. 2) Which of the following statements best describes the effect of climate on biome distribution? A) Average annual temperature and precipitation are sufficient to predict which biome will be found in an area. B) Seasonal fluctuation of temperature is not a limiting factor in biome distribution if areas have
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discuss the impacts of storm events in the british isles and evaluate Can someone help clear something up for me with ecosystems - savanna grassland biome... In the textbook it says that it is cooler in the dry season and hotter in the wet season but then says that in the desert margins the temperature ranges from 18ºC in the wet season and 34ºC in the dry season Did the make a mistake by saying that the wet season is hotter or have they got the temperatures muddled? (Original post by
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