Name:__________________________________________________________________ Block: _______ Ecological Pyramids Worksheet 1. Give one example of a food chain that exists in nature. Grass-mouse-snake-hawk 2. In an ecological pyramid‚ what happens to energy‚ biomass and # of species as you move up? Why? They all decrease because energy is lost as it moves up each trophic level. Each trophic level requires more energy to sustain it‚ increasing competition for resources and causing number of
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209 Week 5 The Flow of Energy in Marine Ecosystems General Questions - General General Questions Create a diagram‚ chart‚ or illustration in which you depict the flow of energy in marine ecosystems. You may use either a web format in which food chains are included or a biomass pyramid format. The assignment should include the following: Title Page Diagram‚ chart‚ or illustration of a web format or biomass pyramid Description of primary productivity Description of a method used to
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Chapter 37 Communities and Ecosystems Study Guide A 4-mm-long wasp called Apanteles glomeratus stabs through the skin of a caterpillar and lays her eggs; Yet another wasp‚ a chalcid‚ may lay its eggs inside the ichneumon larvae. Structural Features of Communities Communities are characterized by species diversity‚ dominant species‚ response to disturbance‚ and trophic structure interspecific competition Competition between individuals or populations of two or more species requiring a limited
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Sahara Desert The Sahara Desert is the world’s largest desert area. The word Sahara comes from the Arabic word sahra’‚ meaning desert. It extends from the Africa’s Atlantic Ocean side to the Red Sea and consists of the countries of Morocco‚ Algeria‚ Tunisia‚ Libya‚ Egypt‚ Mauritania‚ Mali‚ Niger‚ Chad‚ and Sudan. It is about 5‚200 miles long. Overall‚ the Sahara Desert covers 3‚500‚000 square miles. The geography of the desert is varied. In the west‚ the Sahara is rocky with varied elevation
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h e S a h a r a D e s e r t The Sahara Desert is the largest hot and dry desert in the world. It is located in North Africa; it covers 9 million square kilometres and covers over twelve countries‚ some of the countries include; Morocco‚ Algeria Libya‚ Tunisia‚ Egypt‚ Mauritania‚ Mali‚ Niger‚ Chad‚ and Sudan. Most of the Sahara Desert is located at Algeria. The Sahara Desert receives less than 40cm of rain per year‚ the sand dunes in the Sahara Desert reach up to about 180 metres. It is Atlantic
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This chapter covers Ecology and‚ as such‚ has a vocabulary all its own – which is often examined. Environment: All the organisms (biotic) and the conditions (abiotic) which exist in an area Abiotic factors: all the non-living factors in an environment‚ such as rainfall‚ temperature‚ soil. Biotic factors: All the living organisms in an area – such as producers‚ predators and parasites. Population: All the members of one species living in an area Community: The total of all the populations living in
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of nature consisting of community of organisms‚ interacting with each other and with their surrounding physical and chemical environment. In order to be an ecosystem‚ energy should be transferred in a form of organisms. There should be a food chain in order to be an ecosystem‚ when one organism eats the other. SOME IMPORTANT ECOLOGICAL TERMS 5.1.1 Population: All living things of the same species in a habitat at any one time. Ex. Panda population in China in 1989 Community: All the
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Standard B-3: The student will demonstrate an understanding of the flow of energy within and between living systems. B-3.1 Summarize the overall process by which photosynthesis converts solar energy into chemical energy and interpret the chemical equation for the process. Taxonomy Level: 2.4-B and 2.1-B Understand Conceptual Knowledge Key Concepts: Photosynthesis: light-dependent reactions‚ dark (light-independent) reactions Previous knowledge: In 6th grade (6-2.7)‚ students summarized the
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everyday struggle between the omnivore and its food choices. The omnivore’s dilemma comes about every time the omnivore becomes hungry. There is the question of “What do I want to eat?” for each meal. Pollan believes that the omnivore has three main food chains: the industrial (corn)‚ the pastoral (grass)‚ and the personal (forest). I chose Part III Personal of The Omnivore’s Dilemma. The personal food chain is where the hunter-gatherer finds their food within the forest. I will be reviewing chapters
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meant by a food chain‚ giving three examples‚ each with at least three linkages (four organisms) A food chain shows the linear feeding relationships between species in a community The arrows represent the transfer of energy and matter as one organism is eaten by another (arrows point in the direction of energy flow) The first organism in the sequence is the producer‚ followed by consumers (1°‚ 2°‚ 3°‚ etc.) Examples of Food Chains 5.1.5 Describe what is meant by a food web A food web is
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