Lecture 5 Lizan A. Majeed Reading Paragraph Purpose Each paragraph in a text has a clear purpose. For example: The first paragraph introduces the topic‚ states the purpose of the text‚ or describes a problem or situation. The body paragraphs develop arguments‚ try to persuade‚ suggest solutions‚ or describe developments. The final paragraph concludes‚ evaluates‚ or discusses consequences. Identifying the purpose of each paragraph helps you understand the text and decide where
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food chains and food webs. Pollution (incineration‚ factories‚ fuel combustion)‚ Overhunting/fishing‚ Deforestation etc. 7. Label the ecological pyramid below with the following words: producers‚ tertiary consumer‚ secondary consumer‚ autotroph‚ heterotroph‚ primary consumer‚ decomposers‚ hawk‚ grass‚ chicken‚ grasshopper. Also label and explain what happens to energy‚ biomass and number of organism. 8. Discuss what trophic level humans can occupy on an ecological pyramid‚ and explain what
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University of Phoenix Material Name:Shaniece Daniels Appendix A – Cell Division in Bacteria After reading Ch. 6 in Microbiology: Principles and Explorations‚ fill in the following matrix. List the four phases of bacterial growth and briefly describe what happens in each phase. Lag phase: Is the period when the bacteria are adjusting to the environment. Log phase: Is when the population grows in a logarithmic fashion. Stationary phase: a substance that shows different
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Natural Resources and Energy in the Rainforests The beauty‚ majesty‚ and timelessness of a primary rainforest is indescribable. It is impossible to capture on film‚ to describe in words‚ or to explain to those who have never had the awe-inspiring experience of standing in the heart of a primary rainforest. Rainforests have evolved over millions of years to turn into the incredibly complex environments they are today. Rainforests represent a store of living and breathing renewable natural resources
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production = respiration + heat losses + net production)…in aquatic systems‚ productivity is often measured in volume instead of area” ("Biological Productivity‚" 2012‚ p. 1). Ecologists distinguish between primary and secondary productivity by autotrophs and heterotrophs. To list several factors that influence productivity in various ocean environments I believe it is important to first understand that “although oceans cover approximately two-thirds of the Earth’s surface area‚ it only accounts for about
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Lecture 19: autotrophs‚ heterotrophs‚ primary producer‚ consumer‚ predator‚ plants‚ animals‚ photosynthesis‚ organic material‚ inorganic material‚ carbon‚ carbohydrates‚ chlorophyll‚ nutrients‚ limiting Q.The forward and reverse reactions of the following equation describes what processes:
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the association of a number of interrelated populations belonging to different species in a common environment. The populations are that of animal community‚ plant community and microbial community. Biotic community is distinguished into autotrophs‚ heterotrophs and saprotrophs. PROCESSES OF ECOSYSTEM The transformations of energy in an ecosystem begin first with the input of energy from the sun. Energy from the sun is captured by the process of photosynthesis. Carbon dioxide is combined with
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Protista - single-celled‚ colonial eukaryotes‚ contains nucleus and other membrane bound structures‚ mobile Plantae - photosynthetic‚ multicellular autotrophs‚ cellulose cell walls‚ contain chlorophyll Fungi - multicellular heterotrophs‚ digest and internalize food from their surroundings‚ immobile‚ chitin cell walls Animalia - multicellular heterotrophs‚ internal digestive system Chapter 2: Chemical Basis of Life CarbonHydrogenNitrogenOxygenPhosphorusSulfur Atom - fundamental unit of matter Element
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Cuscuta (Amarbel) is a host.[ ] 4. Lichens‚ an alga and a fungus show symbiotic relationship. [ ] 5. In desert plants‚ green stems carry out photosynthesis.[ ] III) Define the following 1. Autotrophs 2. Saprotrophs 3. Heterotrophs 4. Nutrition IV) Diagrams : 1. Cell 2. Photosynthesis in plants. Chapter 2 : Nutrition in Animals Fill in the blanks : 1. The mode of taking food into the body is called ___________________ 2. In the process of ________________
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by its mix of interacting biotic and abiotic components. • Producers/ Autotrophs-organisms that use the energy of the Sun to produce usable forms of energy • photosynthesis- the process by which producers use solar energy to convert CO2 and water into glucose. • cellular respiration- the process by which cells convert glucose and oxygen into energy‚ carbon dioxide‚ and water. • Consumers/ Heterotrophs- An organism that must obtain its energy by consuming other organisms •
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